ESP Fault. Audi R8.
Discussion
The car has been driving fine for 6 months, it is an Audi R8 v8. At the petrol station today when I tried to start the engine, "ESP Fault. See owners manual." flashed up for a moment then the car stalled. When I tried to start it again it did nothing. I took out the key and left it for a few minutes and then started it again, it started with the same fault message again but did not stall, the car drove very "juddery" for a few minutes but then drove fine. The engine light is now on and by the time I got home (10 minutes drive) the fans on the car were running so loud I could hear them inside the house. I did try and start the car a few times when I got home and sometimes it would start fine and other times it wouldn't start at all.
Any ideas?
Any ideas?
Try unplugging the MAF (mass air flow) sensor. Esp light will remain but if the car begins to run alot smoother (maybe not quite 100%) then odds are the MAF sensor has died and needs replacing.
Strange i know that the MAF can bring up an esp fault but the same occured on my v6 TT when the MAF died
.
Hope thats of some help,
Russ
Strange i know that the MAF can bring up an esp fault but the same occured on my v6 TT when the MAF died
.
Hope thats of some help,
Russ
Try unplugging the MAF (mass air flow) sensor. Esp light will remain but if the car begins to run alot smoother (maybe not quite 100%) then odds are the MAF sensor has died and needs replacing.
Strange i know that the MAF can bring up an esp fault but the same occured on my v6 TT when the MAF died
.
Hope thats of some help,
Russ
Strange i know that the MAF can bring up an esp fault but the same occured on my v6 TT when the MAF died
.
Hope thats of some help,
Russ
Hi Russ, where would I unplug the MAF sensor? I went out in the car today and it drove fine, started perfectly normally this morning, no engine lights or warnings so I am convinced it must be a sensor like this that sent the car into wacko mode last night. Look forward to your reply. Cheers.
I have no experience of the r8 engine so unfortunately cannot help you on where it is in the engine bay.
The sensor will look something like the link below -
http://www.europaparts.com/mass-air-flow-sensor-07...
It's possible due the v8 engine configuration that there will be 2 MAF sensors. They will be on the ducting between the air filter housing and the engine itself (possibly both sides of where it says v8 Fsi on the engine).
If you google audi rs4 maf sensor you may find some more clues as I believe the engine was originally in the rs4.
Russ
The sensor will look something like the link below -
http://www.europaparts.com/mass-air-flow-sensor-07...
It's possible due the v8 engine configuration that there will be 2 MAF sensors. They will be on the ducting between the air filter housing and the engine itself (possibly both sides of where it says v8 Fsi on the engine).
If you google audi rs4 maf sensor you may find some more clues as I believe the engine was originally in the rs4.
Russ
Edited by Russ Sims on Friday 26th April 12:50
It always amazes me on these forums that you would be prepared to fook around with a car of this value tinkering to try and fix something. One foot wrong and you could break something else which could be very costly.
Get it recovered by Audi or a specialist and professionally repaired.
If you fook it up Audi will have your trousers down and rightly so IMHO.
Nothing worse than trying to fix something that's been messed with.
Get it recovered by Audi or a specialist and professionally repaired.
If you fook it up Audi will have your trousers down and rightly so IMHO.
Nothing worse than trying to fix something that's been messed with.
I wonder if it's a fault with the can bus system? That would account for the ESP light coming on (no or limited comms to the ABS module), and the engine running poorly (no / limited comms to the engine module).
Either way, I suspect it's time for specialist advice - I would be disinclined to disconnect the MAF - it may well bugger the cat for a start.
Where abouts are you?
Either way, I suspect it's time for specialist advice - I would be disinclined to disconnect the MAF - it may well bugger the cat for a start.
Where abouts are you?
In the absence of one of those let me have a try.
The car started but while cranking the ESP failure was displayed, typical symptom of battery voltage dropping out could be a flat battery from minimal use long periods of inactivity (Happens on R8's) or just a knackered battery that needs replacing.
If you start and stop and start the engine, you are likely to flood it with excess fuel, which at the lease will cause a misfire for a period while it clears out, but if you don't drive it to clear it out, it will fail to start.
The car started but while cranking the ESP failure was displayed, typical symptom of battery voltage dropping out could be a flat battery from minimal use long periods of inactivity (Happens on R8's) or just a knackered battery that needs replacing.
If you start and stop and start the engine, you are likely to flood it with excess fuel, which at the lease will cause a misfire for a period while it clears out, but if you don't drive it to clear it out, it will fail to start.
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