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Audi A4 Maintenance and Repair

2367 messages,  Last post on May 16, 2013 at 8:34 AM

You are in the Audi A4 Forum.

What is this discussion about? Audi A4, Convertible, Sedan, Wagon

    
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Messages Page 79 of 238

#773 of 2367 puzzling accelerator problem by erix

Jun 17, 2005 (6:47 am)

A week ago I bought a used 2002 A4 1.8T with Tip and Quattro w/62k on it and already problems are starting to surface. For the first four days everything went well, the car was an absolute pleasure to drive.
However, right after I had the vehicle inspected at a respectable Chicagoland Audi dealership, my accelerator pedal has been quitting on me intermittantly and my brake light won't turn off.
The accelerator problem first happened on a chilly 50 degree morning (as opposed to the 70 degree nights we had been having) when I was going down the highway at 4:30 am. I had the pedal down at the time and the car just stopped accelerating. I pressed it down a couple of times to see if it was just the Tip being laggy again, but nothing happened at all, the tach didn't move. Then suddenly -about 4 seconds after it stopped responding- the car started responding to the pedal again and it accelerated sharply. It happened twice on that trip and today it must have happened 5 or 6 times, I was afraid it wouldn't make to the office parking lot. And it only seems to happen in the morning, which baffles me!
Anyone have a clue on what causes this or -better yet- an idea on how to fix it? I'm scared to drive this thing on the highway now!

#774 of 2367 Re: Car fuel pump issues [chloeeve] by alexis1

Jun 17, 2005 (7:52 am)

Replying to: chloeeve (May 12, 2005 5:29 pm)
Just the other day my A4 1.8 Tip Quadro (2003) died out of no where, but I had no warning signs at all. No loud noises or lights. The car ran perfectly for the last 2 years up until I'm driving along (about to hit one of the busiest bridges in Western Mass) and the car just dies. Apparently it was the Fuel Pump and according the the dealership it was a "known" problem and is covered under warrantly(phew!). But it's still frustrating to pay all this money for a car that ups and dies on you after 2 years. Hopefully that is the only issue that caused the car to die--we shall see. .

#775 of 2367 Re: puzzling accelerator problem [erix] by simple2

Jun 17, 2005 (9:00 pm)

Replying to: erix (Jun 17, 2005 6:47 am)
erix,
 
I believe this is an easy fix.
Problem caused ,most likely ,by faulty Brake switch which is located on the brake pedal. That is why brake lights coming and staying ON. It is an AUDI safety future, if brake pedal depressed ( or switch malfunction) engine management module disables accelerator! Replace the switch and you will fix your problem.
All this is assuming that you normally drive with your foot (or carpet perhaps) NOT resting

#776 of 2367 Re: puzzling accelerator problem [erix] by simple2

Jun 17, 2005 (9:03 pm)

Replying to: erix (Jun 17, 2005 6:47 am)
erix,
 
I believe this is an easy fix.
Problem caused ,most likely ,by faulty Brake switch which is located on the brake pedal. That is why brake lights coming and staying ON. It is an AUDI safety future, if brake pedal depressed ( or switch malfunction) engine management module disables accelerator! Replace the switch and you will fix your problem.
All this is assuming that you normally drive with your foot (or carpet perhaps) NOT resting on the brake pedal as it will cause the same effect. Switch is fairly sensitive.

#777 of 2367 Re: Indicator relay replacement [mikels] by marleybarr

Jun 18, 2005 (9:10 am)

Replying to: mikels (Jun 16, 2005 7:49 pm)
Had the same turn signal problem. Replacing these parts did the trick.
  
 
Audi part # 4bo-941-509-d-b98 emergency switch------- $29.90
Audi part # 8 lo-953-513-j-01c turn signal switch-------- $65.07

#778 of 2367 2000 A4 Auto Transmission problem by jayb2005

Jun 18, 2005 (9:12 am)

I have an A4 1.8SE (200) with a four speed Automatic Transmission. It has only got 33k on the clock. More and more frequently after driving in town traffic I'm getting very abrupt down and up changes which results in the car jerking alot through the changes. I took it to Audi and the car was on its best behaviour and did not put a foot wrong. On the drive home it started again! Anybody got some ideas on what the problem might be? I've had some people say it could be a control unit! It's also rough on start up and drinking petrol like its going out of fashion at the moment!

#779 of 2367 Re: 02 A4 Engine Oil Sludge Damage [auditech] by blantonjl

Jun 18, 2005 (7:06 pm)

Replying to: auditech (Jun 13, 2005 9:34 pm)
Auditech:
 
We experienced a problem to our 2002 1.8l A4 due to the oil sludge issue 6000 miles ago. We were very happy with the service and Audi taking care of the major repairs our engine required. Audi did cover all expenses since we preformed all maintenance at our dealer since purchase.
 
Yesterday however we took our car to our dealer because the check engine light appeared (and because our wipers stopped working, which we have been told is a common problem-cost $400). We were extremely shocked and upset to hear our turbo needs to be completely replaced ($2850). Since the turbo was not replaced 6000 miles ago when we had the original oil sludge repairs, we immediately asked about the oil sludge issue, and the dealer said they would check with Audi. We are awaiting an answer Monday but have been told not to expect any assistance from Audi.
 
We have been reviewing postings on this site and others and realize others have received an extended 5-year warranty and also from your response we understand that the turbo can be affected by the oil sludge.
 
Would you please advise as to what action we should be taking? We love our Audi and planned on continuing to buy future Audi’s. Our car has only 70k miles and we feel we paid for a vehicle that operates under high standards.

#780 of 2367 Re: Indicator relay replacement [hydrocarbon] by auditech

Jun 18, 2005 (8:38 pm)

Replying to: hydrocarbon (Jun 17, 2005 5:30 am)
No. The relay IS the hazard switch

#781 of 2367 Re: Refueling Problem [mtman] by auditech

Jun 18, 2005 (8:40 pm)

Replying to: mtman (Jun 17, 2005 6:11 am)
You most likely have a plugged EVAP cannister. The fumes in your gas tank have to go through here as you fill up because they can't be released to the atmosphere......otherwise you need a gas tank.

#782 of 2367 Re: 02 A4 Engine Oil Sludge Damage [simple2] by auditech

Jun 18, 2005 (8:42 pm)

Replying to: simple2 (Jun 17, 2005 5:12 am)
Is there any way you can take a picture of it?

Messages Page 79 of 238

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