2001 Audi A4 with timing belt failure and repair. Consumer states that the timing belt repair did not last and his vehicle completely failed on the highway. Consumer was then informed of an oil sludge issue. Updated 10/19/11.

- Chantilly, VA, USA

I have had to replaced all four coils two (2) times on my Audi a.4 1.8T and Audi usa says this is normal.

- Decatur, GA, USA

The contact owns a 2001 Audi A4. While driving approximately 35 mph uphill, the vehicle stalled. There were no warning lights illuminated on the instrument panel. The vehicle was towed to an independent mechanic and it was discovered that the timing belt needed replacing and the engine was destroyed. The vehicle has not been repaired. The failure and current mileages were 84,429.

- Cortlandt Manor, NY, USA

The contact owns a 2001 Audi A4. He heard a humming sound coming from the vehicle. The dealer stated that the camshaft tensioner needed to be replaced. He also stated that the power circuit failed due to a leak on the roof. The current and failure mileages were 42,140.

- Arlington, VA, USA

2001 Audi A4 1.8 turbo at 99.1K miles. The timing belt prematurely napped while the car was traveling in a busy morning commute causing car to disabled on the freeway. The timing belt failure caused extensive, additional damage to the engine that estimated to coast about $6000 to repair. I have all my maintenances done at the Audi dealers and follow all the recommend service by Audi. I was never been recommended to replace the timing belt on my all previous visits for maintenance service. The recommended timing belts replacement by Audi for my model is 105K miles. Both Audi dealer and Audi denied been in responsible for the timing belt defect and/or incorrect timing belt maintenance recommendation which subsequently result the engine damage and provide any assistant. According to Audi, they do not guarantee the timing belt will last to 105K miles, only that it is their recommendation.

- Oak Park, CA, USA

The contact owns a 2001 Audi A4. While driving 55 mph, the vehicle lost power and shut off. The vehicle was unable to be restarted and was towed to the dealer. The dealer stated that the timing belt snapped. As of July 30, 2007, the vehicle has not been repaired. The current and failure mileages were 99,000.

- Oak Park, CA, USA

2001 Audi A4 1.8 turbo: The timing belt broke while the car was traveling in heavy, rush hour traffic causing the car to be immediately disabled and stopped with no opportunity to move the car off of the highway. The 3-lane highway was backed up for 6 miles while police and emergency workers worked to tow the car. The disabled car led to a very dangerous situation with traffic backed up for over 1-hour on a 3-lane highway with a 55 mph speed limit and could have easily caused additional accidents. The timing belt failure caused extensive, additional damage to the engine that is estimated to cost about $5,000-$6,000 to repair. My Audi A4 has the same 1.8 T engine and item (timing belt) as in the 2001 VW 1.8 T and that item has been recalled. The timing belt defect in the 2001 A4 appears to be quite well known to the two Audi dealers that I frequent. Since I bring my Audi in for service at the regular intervals - and since the timing belt issue is well known to Audi - I would have expected the Audi dealers to bring this issue to my attention so that we could have replaced the belt as part of regular preventive maintenance. The fact that this well known problem was not handled in preventive maintenance led to a very dangerous traffic incident and caused extensive damage to the vehicle's engine.

- Lawrenceville, NJ, USA

: the contact stated while driving 50 mph on the interstate, there was a popping noise from the engine compartment followed by a lost of all power. The contact managed to pull over without incident. The engine would not restart and the vehicle was towed to the dealer for inspection. The dealer determined there was a hole in the engine and was unable to identify what caused the hole, however a new engine replacement was necessary. Updated 5/10/2006 -

- Cockeysville, MD, USA

1) normal driving 2) cam shaft gasket failure. Causing oil leak. 3) taken to repair shop. Audi maintenance warranty does not check for this. Issue occurred after warranty expired after 50000 miles.

- Austin, TX, USA

A4's have a poorly designed cam tensioner that eventually leaks oil. The cost to repair the item is approximately $1000. The dealer (carousel Audi) even admits to the fact that it is a poor design and there have been numerous complaints about it at the dealer. I've also read numerous complaints about it on Audi forums. The leak typically found shortly after the warranty period has expired. I feel strongly that this should be a recall on all respective cars to have it repaired!

- Golden Valley, MN, USA

'01 A4 2.8: (1) digital display is blurry and cannot fully understand everything the computer is displaying, (2) internal oil seals have become defective causing a foul burnt-oil smell within and outside the vehicle, (3) transmission downshifts very hard and rough, (4) very poor design by the engineers to place a cupholder directly over the stereo and heater instrumentation which have caused my buttons to stick. Have taken the vehicle to various dealerships and shops and technicians have stated that the seals are obviously a design flaw and so is the display panel with has some software or lcd problems associated with it.

- Houston, TX, USA

Oil light came on. Immediately pulled over and checked engine oil level. Not low. Took the car to the dealership. Originally diagnosed as needing a new oil pump due to oil sludge. On further inspection the dealer found scarring on the engine bearings and wear on the camshaft. Upon flushing all the pre-existing oil out of the engine, metal filings were found. New diagnosis: Completely new engine required. Audi, usa knows this is a prombem with A4 1.8T. They've extended warranties as a direct result. Yet becuase I'm the second owner and can't produce all previous oil change receipts, I'm being required to pay for the new engine. This is a poor engine design that I shouldn't be held liable for.

- Kaysville, UT, USA

Audi A4 1.8T oil pump failure causes cam adjuster failure, causing possible $8000 in damage to cams in 1.8T motor.

- Toluca Lake, CA, USA

While driving down the highway, consumer states vehicle began to shake and engine light illuminated. The vehicle was towed to dealer. Dealer says emission coil failed. Please provide any further inforationl

- Bronx, NY, USA