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Sorry mate, but as far as I know there is no protection on any cars I know against dissent size rock flaying in to the condenser / radiator when you travel at speed around 100 Km/hour. Only off-road SUV’s have heavy duty grilles and bash boards .
If you have damaged your condenser so the gas has escaped it was a fair size rock or a high speed impact. Unless of coarse AUDI service are playing games because they do not want to do it under the warranty . but this is only guess.
Have a question for you .
A4 1.8T Q 2002
What is the purpose of the small 3 way valve which spites westgate activator pipe in to the “T” join ? (located 5 inch away up on the pressure pipe coming from westgate activator)
Does it simply bleed the control pressure back in to the turbocharger inlet if westgate needs to be kept close? Or it also keeps the pressure in the activator keeping the gate open permanently if needed?? Can the malfunction of the valve cause westgate to be always open?
Thank you.
You're right about the empty tank though. It must hold more pressure as the fuel decreases.
Been there with the clothes as well. Nothing like going to work in nice clothes smelling of gasoline.
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!
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
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.
Audi part # 4bo-941-509-d-b98 emergency switch------- $29.90
Audi part # 8 lo-953-513-j-01c turn signal switch-------- $65.07
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.
My next problem is more annoying. Again, the mechanic couldn't reproduce the problem, even after keeping the car for a week of testing. What happens is that after a temporary stop (pulling up to an automatic gate, for example), when I apply pressure to the accellerator, the car doesn't move. Revs stay up, but there is absolutely no drive to the wheels. I have tried changing to S, to Park, back to drive, to reverse, and nothing. I even tried turning the ignition off, and then re-starting. Still no go. After about a minute or two, it seems to correct itself, especially if I rev it heavily for some seconds. Even then, the power comes back slowly, and not all at one go. This problem is also intermittent - and it happens about once every 2 weeks. And always within a few minutes of a cold start (temperature higher than 20 degrees celsius) , and on all occasions on a slight incline. (Not sure what difference that makes!) The only thing I can think of is that the second problem started occurring after towing a 1,1 metric ton boat, although the car/gearbox didn't seem to be in distress at all. Perhaps the gearbox oil is 'cooked'? (Not even sure if that can happen!) Can anyone out there please help, as the local dealers have no clue how to fix either of the problems.
Many thanks in advance!
Chris Pearson
The car now has 14,000 miles.
Since new I have complained to Audi about smoke problems.
Under acceleration it kicks out huge amounts of black smoke.
Despite being back to Audi 4 times with complaints the common reply is that they have put it on the computer and there is nothing wrong.
My previous A4 (115bhp) and our 2 Passats (130bhp) had nothing like this - they were all manuals though.
I also only get 38-40mpg - whereas my old Audi got 52mpg - I have not changed my driving style or routes.
Any ideas please??
Darren
Mike
There is a thin, open-ended tube in the nozzle of a gas pump, running up the inside of the nozzle and which leads back to a diaphragm in the gas pump handle. The diaphragm serves as the actuator for the automatic shutoff valve. Also connected to the same side of the diaphragm are the low pressure ports of a venturi tube. During normal operation, the gasoline flowing through the venturi induces flow of vapor from the tube back to the diapragm.
If the tube becomes clogged or flow is choked off, a vacuum condition is created, and the imbalance of force across the diaphragm closes the gas supply valve. The tube can become clogged from particulate matter, or peening of the nozzle tip.
I had this happen to me many times in Mexico, Turkey and India, where the pumps were often in bad shape. Like I said, I doubt it's your problem, but it is at least interesting to know how the shutoff valve on a gas pump works.
However, when brought in for an oil change, or most any kind of service, the scrapes and the oil leak will be noticed immediately. This would be noted in the service file if brought to the dealer and will probably cost you money at lease end for extra "wear and tear."
You will have to decide whether to bring this issue, which probably is a non-warranty repair, (when they see the scrapes) to the dealer , or to an independent garage. The problem is, you may have a very hard time finding an independent that can deal with something as serious as an oil leak in a 2005 S4. I have heard that parts are in short supply for this model and your car could be tied up for a long time waiting for a specialty part.
I have a 2003 A4 1.8tQ @ 31K miles and the first 2 years the car was great. Sept or Oct of last year I start having the same problems as your friend has- some times the start up is rough and the engine surges. Went to the dealer the same week and they ran all the necessary tests and told me that they couldn't find anything wrong w/ the car and most likely it is bad gas. I changed the gas station that I usually go to (Shell and I only go to Shell) and everything was o.k. for 2 -3 months and then again the same problem. Changed the gas station again this week and will see how it's goes. I don't think it's a bad gas, but the dealer couldn't replicate the problem. I called Audi Customer Relation 2 days ago and they told me to change the dealership and that they can't help me. I'm sure there are other Audi's owners experiencing the same problem and it will be very helpful if anybody had this problem and it was fixed. It looks like the dealer don't know how to fix it. DL7265- has your friend found a way to fix the problem? Thank you. :confuse:
Have just purchase the same car but with a six speed manual box, I have the same problem, I was just looking on various web sites to see if there were any problems of this sort prior to going to see my local Audi dealer. I am getting the same mpg, I have not sen many other Audi A4's blowing out black smoke.
Any help would be welcome.
Phil
This has done 14000 miles now but has been very smoky since new.
I have had it back 4 times to 2 garages and they all say - "the machine says its fine - diesels do smoke".
I had a 115bhp manual before this and we ran 2 Passats for 50,000 miles with none of these problems.
It is also low on economy returning under 40mpg - when my previous did 50mpg+.
I suspect it is the gearbox loadin the engine too much and the engine re-tuned for torque at lower revs.
Any ideas please as its getting embaressing with the smoke on a £28k car.
Many thanks
Darren Jade
I did see 1 that was like mine but could not get its registration.
I am thinking about throwing a challenge down to my dealer to pick any diesel in the car park and we will compare them under load.
I know which will smoke the heaviest.
If I get time early next week I may do this.
Surely there is someone technical out there can help??
Darren
All of this lasts for about twenty minutes if I don't stop at a red light and if I do the oil pressure light goes off but comes back on once I start driving again.
Oh, and now my motorized driver's seat won't move either!!!
Any ideas so I can pass them onto my dealership. Thanks
How easy is it to replace the switch yourself? I'm wondering if i'm any better off making this a DIY affair vs getting bent over at the local Audi stealer. I'm used to working on Hondas inside and out (I know, I know, fairly primitive compared to the Audi tech) so I'm not completely useless. Has anyone here attempted this?
Do you mean that after twenty minutes of driving the problem starts or after twenty minutes it returns to normal?
I am car technician in the past as well. But have not done it for a while now.
However it fells great to get my hands in the engine bay of my AUDI.
In regards to the switch, my were replaced by AUDI under warranty. I remember looking for it and it was a fairly easy to replace. If you can get the replacement switch and have a set of tools handy, I will be surprised if it will take you more than 15-20 minutes.
AUDI A4 1.8T Quattro
After twenty minutes it returns to normal.
And there's nothing as too vague or sounding like a fool...at this point I'll take all of the help that I can give my Audi tech
Can I ask how your situation ended up, and what suggestions you have for me to get Audi to pay for this?
I will try to get oil change records, but want to know how hard I can press.
Thanks
Anyone else have this problem? As great a car as it is, I'd rather dump it than start spending major $$$. Is it worth going to the dealership and getting a diagnostic, or is this a common enough problem that there is some knowledge on this board...
Thanks, in advance. J.V.