Audi timing chain - Repairs Related to Timing Chain Replacement. Timing Belt Idler Pulley Replacement. $331 - $456. Timing Belt Tensioner Replacement. $368 - $465. Timing Chain and Gear Set Replacement. $1,202 - $1,360. Timing Chain Tensioner Replacement. $1,062 - $1,250.

 
1. Understanding the Timing Chain. The timing chain is responsible for synchronizing the rotation of the crankshaft and the camshafts in an engine. In the Audi 4.2 …. Application like airbnb

Orion Motor Tech Engine Timing Tool Set Compatible with Audi VW VAG 1.8 2.0 TSI/TFSI EA888 T10352 T40196 T40271 T10368 T10354 T10355 Crankshaft Camshaft Belt Drive Locking Alignment Timing Tool Kit. ... Chain locking tool,specially designed to fix the chain tensioner. T40196 . Camshaft alignment pin set, use to push the sliding pieces …Yifeng Pharmacy Chain News: This is the News-site for the company Yifeng Pharmacy Chain on Markets Insider Indices Commodities Currencies Stocks Introducing the JHMotorsports Timing Chain Rebuild Kit for your B6-B7 S4 4.2L V8!!! This kit features our brand new, JHM exclusive, Mechanical Adjuster Repair Kit. This exclusive repair kit is another cost effective repair solution for your B6-B7 S4 brought to you by the V8 specialists at JHMotorsports! The average cost for a Timing Chain Tensioner Replacement is between $2,748 and $3,211 but can vary from car to car. An Audi S4 Timing Chain Tensioner Replacement costs between $2,748 and $3,211 on average. Get a …Going to the movies is a popular pastime for many people, and one of the most well-known theater chains is AMC Theatres. With their wide selection of movies and state-of-the-art fa...Upper and lower timing chains. Necessary gaskets (cylinder head, exhaust manifold, intake manifold, timing covers, downpipe, oil line, vacuum pump, valve cover sealant) Necessary hardware (head bolts, valve cover, manifold/downpipe studs, manifold/downpipe nuts, Reply Like. 07-26-2022, 06:28 AM. # 9.S4 (B8 Platform) Discussion - 2013 S5 - Timing Chain check - The Audi service schedule does not mention (for the 3.0T) as far as i can see: - serpentine belt - supercharger belt (unless they mean the 'Ribbed V-belt' listed as either 60k all 3.0L V6 TFSI or 75k all V6 FSI, all 3.0L V6 TFSI (rear most belt) - timing...If money is no object, then you may want to consider purchasing a luxury car from a top end automotive manufacturer that has all the bells and whistles. And, when money is not a co...This Assembled By ECS Timing Chain Kit (Mfg#079109229KT1) fits Audi B6 S4, Audi B7 S4, Audi C6 A6 4.2, Audi C6 A6 V8 4.2L. Includes the upgraded RS4 metal guide rail, OEM additional guide rails, OE timing chains and tensioners - …The average cost for an Audi A4 Quattro Timing Chain Tensioner Replacement is between $968 and $1,115. Labor costs are estimated between $561 and $708 while parts are typically priced around $407. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed. Model Power | Displacement | Cylinder | Engine family | Code Camshaft drive system Timing belt or chain; Audi Q3 1.4 TFSI 92 kW / 123 hp / 125 PS | 1395 cc | 4 | VW EA211 | CZDB Are you dreaming of driving a luxurious and customized Audi that perfectly suits your preferences? With the “Audi USA Build Your Own” feature, you can turn that dream into a realit...Jun 22, 2012 · That R+I is perhaps the better part of two days alone. Then think about undoing stuff down to the chains. Having personally rebuilt several C1 motors--1871 cc inline 4's in the Audi 100LS from 1969 to the mid 70's, which was the last time Audi used a chain to drive the cam all the way until the modern generation--these aren't even remotely similar. This Assembled By ECS Timing Chain Kit (Mfg#079109229KT1) fits Audi B6 S4, Audi B7 S4, Audi C6 A6 4.2, Audi C6 A6 V8 4.2L. Includes the upgraded RS4 metal guide rail, OEM additional guide rails, OE timing chains and tensioners - …Mister Bally have a 04 4.2L. I have a 04 also. I got my timing belt service done for $2300 at the local stealership(2nd time done). The first time was a "VW/Audi specialist"($1300 parts and labor) with blauparts timing belt kit.Do you know how to Check 2.0T TSI Timing Chain Tensioner. If you drive an 2.0t TSI Audi or VW you may have timing chain tensioner issues. Checking the timing...Mister Bally have a 04 4.2L. I have a 04 also. I got my timing belt service done for $2300 at the local stealership(2nd time done). The first time was a "VW/Audi specialist"($1300 parts and labor) with blauparts timing belt kit.Timing chain tensioner, right upper - Part Number: 18264-01183648 (Partsgeek.com) $191.99. 3. RTV Silicone. 1. T40058 – Crankshaft Turning Socket - ebay $19. 2. T40070 – Camshaft Locking Tools - ebay - Audi timing tool set $158 (el paso tools store - made by baumtools) 3. T10035 – Multi-point Socket (12 Point 14mm Socket) - …Hilton became the first major hotel loyalty program to extend elite status and suspend point expiration through the end of the year due to the coronavirus. Update: Some offers ment...There are three 5mm allen bolts holding the muffler on. Remove the lower timing cover. The bolts for the lower timing cover are T30 torx bolts. Pry the cover off with a flat head screwdriver. Remove the oil pump chain. Retract the tensioning guide and lock with T40011. Remove the T30 bolt holding the guide on.Used to set correct timing on VW/Audi’s 2.5L 5 cyl, 3.0T V6 (SC), 3.2L V6, 4.2L V8, & 5.2L V10 Brand: ES#: 3202096 ... on orders $49 and up. Upper Timing Chain Tensioner - Left. Applies tension to the upper left timing chain From the 2013 model year. Brand: ES#: 3614027 Mfg#: 06E109217AM Qty: Availability: In Stock 23% off MSRP $175.00 $134. ... 102196 Timing Chain Kit. Part No: FBI102196. $167.49. Replacement. Part No: RA30010005. 82.49. Save more on an aftermarket Audi Timing Chain Kit with CarParts.com's Lifetime Replacement Guarantee. Free 60-Day Returns. There are three 5mm allen bolts holding the muffler on. Remove the lower timing cover. The bolts for the lower timing cover are T30 torx bolts. Pry the cover off with a flat head screwdriver. Remove the oil pump chain. Retract the tensioning guide and lock with T40011. Remove the T30 bolt holding the guide on.However "timing belt" is often used despite actually being chain. Yeah, it looks like a chain Online Audi TT/TTS Coupe/Ro. spare parts catalogue, Canada market, 2017 model year: engine group, camshaft timing chain, slide rail subgroup, Audi VIN decoder, aftermarket, etka onlineDec 26, 2012 · That I leaving knowing the car is good for that area for at least another 100,000 kms. A8 / S8 (D3 Platform) Discussion - 4.2 D3 Timing Belt vs Timing Chain - I'm still researching for my first Audi A8. Now, from what I know, 2007 + the 4.2 went to a timing chain and previous were timing belt. Besides longevity/durability that come from a ... 16K views 1 year ago. Audi RS6 / RS7 / S8 / A8 / S6 / S7 4.0t timing chain adjustment. ...more. ...more. Audi RS6 / RS7 / S8 / A8 / S6 / S7 4.0t timing chain …Colorful beaded key chains in assorted shapes are easy for kids to make with our step-by-step instructions. Learn how to make beaded key chains here. Advertisement When you're look...Timing Chain Tensioner Replacement Cost Estimates. The average cost for a Timing Chain Tensioner Replacement is between $1,190 and $1,374 but can vary from car to car. An Audi Q5 Timing Chain Tensioner Replacement costs between $1,190 and $1,374 on average. Get a free detailed estimate for a repair in your area.Timing Chain Tensioner Replacement Cost Estimates. The average cost for a Timing Chain Tensioner Replacement is between $1,080 and $1,241 but can vary from car to car. An Audi Q3 Quattro Timing Chain Tensioner Replacement costs between $1,080 and $1,241 on average. Get a free detailed estimate for a repair in your area.Make An Appointment. Make your appointment by filling out the form, make sure you specify time, date an vehicle details. Audi Timing Chain Replacement - Help your engine work properly by allowing it to keep is timing intervals for …Meijer is a popular retail chain that offers a wide range of products, from groceries to clothing to electronics. If you’re a savvy shopper looking to score the biggest discounts a...We show you how to check the 2.0t TSI timing chain tensioner. This will help you identify if you have the most updated version of the timing chain tension o...Timing Chain Kit - With Service Tools. Includes the upgraded RS4 lower metal guide rail, OEM, iwis and Bremmen chains, tensioners, and guides - The essentials necessary to get the job done! Brand: ES#: 4362455. Mfg#: 079109229KT13. Qty: Availability: Ships in 2 Business Days.So just following up on this, here's the information that was shared with me by the folks at RossTech: There are two [Basic Settings] for the Camshaft that should run the test for the Camshaft adjustments. [Test of camshaft adjustment intake] [Test of camshaft synchronization] There are also some Advanced Measuring Values that may also be ...Feb 12, 2023 · The timing chain costs much more than the belt because it’s made from metal instead of rubber. The installation is also going to be more expensive because of how difficult it is to access. The timing belt is located under a plastic cover, while the chain has a sealed cover, so most home mechanics can’t replace one. The turbocharged 2.0-liter Audi/VW engine present in this 2015 Audi Q5 certainly has its fair share of known issues, as Long discusses in this video. In this case, timing chain problems have reared their ugly head, which was diagnosed by a long cranking time, as well as the fact that the crossover ran rough once it did start.Timing Chain Tensioner Replacement Cost Estimates. The average cost for a Timing Chain Tensioner Replacement is between $1,190 and $1,374 but can vary from car to car. An Audi Q5 Timing Chain Tensioner Replacement costs between $1,190 and $1,374 on average. Get a free detailed estimate for a repair in your area.Jan 18, 2016 · The timing chain normally needs to be replaced between 40,000 and 100,000 miles unless there is a problem. Issues with the chain are pretty common in high mileage vehicles, so if you are driving an older vehicle, or one with a lot of miles, it is best to be on the lookout for symptoms of the timing chain going bad or failing. Is Starbucks' "tall" is actually too large for you, and Chipotle's minimalist menu too constraining? These chains and many more have secret menus, or at least margins for creativit...2010 Audi A5 starting/idling issues. 1 / 1. 2.0T FSI Discussion - 2.0 tfsi timing chains replacement - Hello guys and girls, Replacing timing chain and all the parts that are needed for that job but noticed that the gears on the vehicle (don't know what they do or any of that) are not aligned as they should. The car has 60k miles and i bought ...There are a couple of screws to remove from the front, clips on the air cleaner cover and hose brackets on the intake that need to come off in order to remove these parts. Figure 3. Remove the two screws …Jun 22, 2012 · That R+I is perhaps the better part of two days alone. Then think about undoing stuff down to the chains. Having personally rebuilt several C1 motors--1871 cc inline 4's in the Audi 100LS from 1969 to the mid 70's, which was the last time Audi used a chain to drive the cam all the way until the modern generation--these aren't even remotely similar. Today we show you how to do a timing chain replacement on this Audi a4. Visit us at: https://gowithaci.com. 1. Understanding the Timing Chain. The timing chain is responsible for synchronizing the rotation of the crankshaft and the camshafts in an engine. In the Audi 4.2 …Nov 19, 2023 ... Does your timing chain need to be replaced? Check the tensioner through the inspection plug, or use VCDS to check the values.The actual amount will vary on your vehicle’s make and model, and your unique location. The timing chain itself costs around $100-$250, though some timing chain kits can go up to $500! A good timing chain kit will include all the gears, tensioners, and sometimes even the water pump. Labor costs can fall around $400-$1500.Feb 12, 2023 · Symptoms of a Bad Timing Chain 1. Grinding Noise. If your car’s pulleys start to make a grinding noise, it could be that the timing chain isn’t in place. When the timing chain becomes loose, it can start to grind. It also occurs if the bearings go out or the pulleys fail. To figure out what’s causing the problem, you must do a complete ... Nov 21, 2019 · Check IDE00182 (MVB 93/3) Camshaft adaptation intake bank 1, phase position at idle. The timing should show 0° +/-5°. Also check IDE00178 (MVB 91/3) Camshaft adjustment intake bank 1, specified value and IDE 00179 (MVB 91/4) Camshaft adjustment intake bank 1, actual value. View the basic LTRPB option chain and compare options of Liberty TripAdvisor Holdings, Inc. on Yahoo Finance.02-25-2018 10:53 AM. View Next Unread. 1 1. A6 / S6 (C6 Platform) Discussion - 3.2 liter Timing chain tensioner information - Hi All, I am hoping that some info/ specs as I plan on replacing both tensioners on the 06 A6 3.2 liter. So far I have only pulled the driver side one out. It was missing the plastic cover on the lever that's activated ...ENGINE TIMING CHAIN KIT 2012 Audi Browse Engine Timing Chain Kit for your 2012 Audi . Return Home Select New Vehicle. Select a Model Search By VIN (Vehicle Identification Number) A3. A4. A5. A6. A7. A8. Q5. Q7. R8. S4. S5. TT. TT RS. TTS {{TotalCount}} Parts fit your selection ...Nov 19, 2023 ... Does your timing chain need to be replaced? Check the tensioner through the inspection plug, or use VCDS to check the values.The Audi e-tron is the latest electric vehicle from the German automaker, offering a range of features and benefits that make it an attractive option for those looking for a reliab...Feb 19, 2024 · The average cost to replace the timing chain in an Audi S4 is around $3,750. However, the cost can range anywhere from $1,100 to $5,000. Certain year’s models are more expensive than others because of the time and labor involved to access the timing chain. Today we show you how to do a timing chain replacement on this Audi a4. Visit us at: https://gowithaci.com. Current Q3 USA gas is an EA888 motor, generation 3B. Then within 3B, it is Performance Class 2. Performance class 1 are the Miller/"B" cycle designs, while this remains conventional 4 stroke. Class 2 are also the higher states of tune in general. Chain came in with first of EA 888, so that has been around on Audi 4 bangers for a decade or …Get in touch today for expert advice we are here to help with any Audi timing chain, Audi timing belt and Audi cam belt related topics you have. A1-Diagnostics and ECU Repairs 64 Sloper Road Leckwith, Cardiff CF11 8AB. Tel: (029 20) 220380 Fax: (029 20) 223172. Opening Times.My old B7 S4 had all this done, but thankfully by the previous owner at a performance shop. You saved yourself a ton in labor costs by DIY. The receipts I had of the work from the previous owner was about $5k just in labor and replacement of only the timing chain and components. Reply reply. [deleted] •.Make An Appointment. Make your appointment by filling out the form, make sure you specify time, date an vehicle details. Audi Timing Chain Replacement - Help your engine work properly by allowing it to keep is timing intervals for …Jan 29, 2020 · The oil should be changed no longer than 5000 mile intervals. Q5/SQ5 MKI (8R) Discussion - 2013 Q5 2.0 Timing Chain Issues - I recently had to replace the timing chain on my 2013 Q5 2.0. It's is in very good condition and just recently crossed 70k miles. My research has led me to few answers as to why the timing chain had worn out so badly. There are two common chain designs used in today’s engines: the link chain and the roller chain. Non-roller chains, or link chains, have stacked rows of flat links connected together via pins. The links are shaped to fit the contour of the teeth on the timing gear or sprocket. Roller versus Non-Roller chains.Audi engines / models – timing belt or chain? (all models) Here you can find out whether a timing chain or a timing belt is installed for the camshaft drive of the Audi engines. The models are displayed from A to Z. Audi models. About Audi. Audi is a car manufacturer from …May 8, 2018 · About 18 months ago I participated in the class action against VW/Audi because the deceivers at VW/Audi knew of a timingchain tensioner problem on the 2.0 engines and kept denyig the issue. I had a 2011 A5 at that time. I was able to get my tensioner changed and was 100% reimbursed. I've read and been told, a new timing chain is needed and in order to do so on a 2011 A6- 3.0T, the engine must be pulled. I did get a quote from a certified mechanic, and the cost is $4,500 to replace all three timing chains with all new parts, two year/24k mile warranty including parts and labor. Sounds really expensive, until the engine pull ...Timing chain replacement on this beautiful and loud Audi S4.Like, comment, share & subscribe to not miss any upcoming videos!CHECK OUT OUR WEBSITE & SOCIAL M...Timing chain replacement - 2010 A6 - UPDATE. My 2010 A6 3.0T has been at the dealer service department for a week now. They finally figured out the strange noise coming from the engine was the timing chain, specifically, the tensioners. The advisor told me today they had to order a new timing chain, new tensioners, and some other parts …The quick answer is Timing Chain. The B6/B7 S4 4.2 liter power plant is a chain driven system. Other variations of the 4.2 liter V8 are belt driven which can be found in models …Oct 17, 2019 ... This is just showing what a skipped tooth on a timing chain looks like. Cam gear measurement is supposed to be 124mm-126mm.The adjustment ones are the real time operational values, specified and actual should track together. That curious that it's only +5° intake on a Gen3 evo. Idle value was +28° intake on a Gen2. Shows the standardized values will need to be reconfirmed for the B9 engines vs the B8 engines. The normal adaptation value threshold was +-5°.Condo Chain Hua Hin, also known as คอนโดเชน หัวหิน, is a condo project located in Prachuap Khiri Khan. This development was completed in 1998. The project offers a total of 200 units. …The timing chain normally needs to be replaced between 80,000 and 120,000 miles unless there is a specific problem. Issues with the chain are common in higher mileage vehicles. If driving an older vehicle, or one with close to 100,000 miles, it is recommended to look for symptoms of the timing chain going bad or failing.Timing chain replacement - 2010 A6 - UPDATE. My 2010 A6 3.0T has been at the dealer service department for a week now. They finally figured out the strange noise coming from the engine was the timing chain, specifically, the tensioners. The advisor told me today they had to order a new timing chain, new tensioners, and some other parts …The timing chain extended warranty applies only for work performed by an authorized Audi or VW dealership during a period of 10 years or 100,000 miles, whichever occurs first.ORDER JHM MECHANICAL ADJUSTER REPAIR KITS HERE: https://jhmotorsports.com/catalogsearch/result/?q=jhm+adjusterORDER …The tensioner leak down is caused by poor oil maintenance & subsequent tensioner wear. Therefore, particularly attentive oil maintenance will support longer tensioner & guide life. My '06 3.2 C6 (w/162k miles) has a steady 7.5 degrees of deviation on it's driver's side cam bank & half that on the passenger side.Replacement FOR AUDI Q7 4L 3.0T V6 Quattro Timing Chain Kit 2013-2016, Engine Code:CJTC ; Replacement Timing Chain Kit Fit VW Touareg Hybrid 3.0L V6 2011-2015 ; PLEASE SEND US VIN(Chassis number)for checking if you are not sure if this kit set will fit or not before ordering. Buyer might bear the custom fee and taxes if needed.Jan 29, 2020 · The oil should be changed no longer than 5000 mile intervals. Q5/SQ5 MKI (8R) Discussion - 2013 Q5 2.0 Timing Chain Issues - I recently had to replace the timing chain on my 2013 Q5 2.0. It's is in very good condition and just recently crossed 70k miles. My research has led me to few answers as to why the timing chain had worn out so badly. The Volkswagen/Audi class action lawsuits allege that some of the automakers’ vehicles have a timing chain defect that can cause engine damage or engine failure. The timing chain system is comprised of the timing chain tensioner, timing chain, chain sprockets, guide rails, and tensioning rail. According to the class action lawsuits, …Mar 9, 2022 · Audi RS6 / RS7 / S8 / A8 / S6 / S7 4.0t timing chain adjustment. 1 / 1. Q5/SQ5 MKI (8R) Discussion - Q5 timing chain replacement at 55k? - I purchased a 2015 Audi Q5 less than two months ago. I’m currently at about 55k miles and check engine light came on last week. Today the …I've read and been told, a new timing chain is needed and in order to do so on a 2011 A6- 3.0T, the engine must be pulled. I did get a quote from a certified mechanic, and the cost is $4,500 to replace all three timing chains with all new parts, two year/24k mile warranty including parts and labor. Sounds really expensive, until the engine pull ... On this page you can find information about which cars and engines have a timing chain instead of a timing belt. ... Audi. Audi A3; Audi A4; Audi A6; Audi Q5; BMW ... All Audi S5 engines have timing chains from the model years 2008 to 2024. All Audi S5 engines from 2008 to 2024 are interference. Scroll down to see specific data for your model year …The adjustment ones are the real time operational values, specified and actual should track together. That curious that it's only +5° intake on a Gen3 evo. Idle value was +28° intake on a Gen2. Shows the standardized values will need to be reconfirmed for the B9 engines vs the B8 engines. The normal adaptation value threshold was +-5°.

102196 Timing Chain Kit. Part No: FBI102196. $167.49. Replacement. Part No: RA30010005. 82.49. Save more on an aftermarket Audi Timing Chain Kit with CarParts.com's Lifetime Replacement Guarantee. Free 60-Day Returns. . Smile zemi reviews

audi timing chain

Audi has been known to reimburse for catastrophic damage after a recall but not as good for preemptive updates. Q5/SQ5 MKI (8R) Discussion - 2.0T Timing Chain Tensioner - I recently purchased my first Audi, 2011 Q5 2.0T. I heard about the problems with timing chain tensioner failure.2005 Audi A6 Quattro Timing Chain Tensioner Engine Mechanical Price: $218.98 Core: $0.00 Extended Warranty: $0.00 Qty: 1 Part #: W0133-1773921. 2005 Audi A6 Quattro Timing Chain Tensioner Engine Mechanical Price: $171.98 Core: $0.00 Extended Warranty: $0.00 Qty: 1 Part #: W0133-1773922. I haven't been able to find …Audi has been known to reimburse for catastrophic damage after a recall but not as good for preemptive updates. Q5/SQ5 MKI (8R) Discussion - 2.0T Timing Chain Tensioner - I recently purchased my first Audi, 2011 Q5 2.0T. I heard about the problems with timing chain tensioner failure.S4 (B8 Platform) Discussion - 2013 S5 - Timing Chain check - The Audi service schedule does not mention (for the 3.0T) as far as i can see: - serpentine belt - supercharger belt (unless they mean the 'Ribbed V-belt' listed as either 60k all 3.0L V6 TFSI or 75k all V6 FSI, all 3.0L V6 TFSI (rear most belt) - timing...All Audi S5 engines have timing chains from the model years 2008 to 2024. All Audi S5 engines from 2008 to 2024 are interference. Scroll down to see specific data for your model year …Your Vehicle Audi B8/B8.5 S4 Quattro 3.0T. Audi Parts S4 Audi ... Includes new tensioners, guide rails, chains, & securing hardware to service your timing chain Up to the 2012 model year. Brand: ES#: 2992123 Mfg#: 079109469ALKT1 Qty: Availability: Back Ordered ON SALE! ... On this page you can find information about which cars and engines have a timing chain instead of a timing belt. ... Audi. Audi A3; Audi A4; Audi A6; Audi Q5; BMW ... The turbocharged 2.0-liter Audi/VW engine present in this 2015 Audi Q5 certainly has its fair share of known issues, as Long discusses in this video. In this case, timing chain problems have reared their ugly head, which was diagnosed by a long cranking time, as well as the fact that the crossover ran rough once it did start.Product Details. Location : Upper Warranty : 24-month or 24,000-mile limited warranty Quantity Sold : Sold individually. See All Products Details. Febi®. 45953 Timing Chain - Replaces OE Number 06K-109-158 A. Part Number: FBI45953. 0 Reviews.Product Details. Location : Upper Warranty : 24-month or 24,000-mile limited warranty Quantity Sold : Sold individually. See All Products Details. Febi®. 45953 Timing Chain - Replaces OE Number 06K-109-158 A. Part Number: FBI45953. 0 Reviews.16K views 1 year ago. Audi RS6 / RS7 / S8 / A8 / S6 / S7 4.0t timing chain adjustment. ...more. ...more. Audi RS6 / RS7 / S8 / A8 / S6 / S7 4.0t timing chain …Audi’s 4.2L V8 is a complex engine driven by a series of chains connecting the camshafts, crankshaft, and intermediate shafts. In order for the timing system to function, the timing chains ride on a series of guide rails and are tensioned by several hydraulic adjusters. Ratio material-/labour cost: ~ 30/70. Cost of materials:: £85 – £450 The costs for a new timing chain are only a small part of the total costs. Material costs are usually around £85 to £450 and depend on the car model and manufacturer of the replacement part. Rely on a timing chain in original part quality! On this page you can find information about which cars and engines have a timing chain instead of a timing belt. ... Audi. Audi A3; Audi A4; Audi A6; Audi Q5; BMW ... .

Popular Topics