A8 Parts Forum - Erratic throttle response when cold

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A8 Parts Forum (https://forum.a8parts.co.uk/index.php)

- D2 - Everything else (https://forum.a8parts.co.uk/forumdisplay.php?f=62)

- - Erratic throttle response when cold (https://forum.a8parts.co.uk/showthread.php?t=6030)

HPsauce

4th April 2016 04:25 PM

Quote:

Originally Posted by HPsauce (Post 107396)

limp mode! :tuttut:

Jumped in the car, started it and selected reverse (to back out of drive) maybe a tad quicker than normal.
Nothing immediate (usually selects and creeps back) so I "think" I squeezed the throttle pedal. After a second or so there was a bit of a clunk and it moved backwards.
Another clunk at the end of the reverse when I changed to Drive - not sure if it was as I moved into Neutral or into Drive.

Headed off and it was "sluggish" going up the hill.
.
.
.

Ignition off, restarted after 5 seconds, all fine. Car drove totally normally from there on
.
.
.
.
Haven't plugged laptop in yet.........

Same again today, I'm expecting the same codes as before.

The car had been sat unused for a couple of weeks prior to starting it today, maybe I should have let it idle briefly and get the fluids moving before selecting reverse?

HPsauce

4th April 2016 05:38 PM

Quote:

Originally Posted by HPsauce (Post 109400)

Same again today, I'm expecting the same codes as before.

And that's what I had:

The usual: 01119 - Gear Recognition Signal 35-10 - - - Intermittent
The expected: 17090 - Transmission Range Sensor (F125): Implausible Signal P0706 - 35-00 - -

HPsauce

27th April 2016 08:25 PM

I'm having this looked at, possibly replaced. This problem has been niggling at me for over 3 years and whilst I can't say that "money is no object" I do want it fixed!

Does anyone know (roughly) what the price of a NEW F125 switch is and how many hours labour by a garage (assuming Audi specialist who know what they are doing) the job will take?
(I know I can get a used one from our sponsors for about £100 so presumably a fair bit more than that new and the Audipages "amateur" swap took several hours)

HPsauce

28th April 2016 01:43 PM

Quote:

Originally Posted by Adrian E (Post 107422)

Be warned there's 2 types of switch with different plugs so order from TPS with VIN to make sure you get the right one. Costs about £150 IIRC and bit of hassle to fit as box needs to be dropped a little to access I think, so one exhaust pipe off from memory.

I've been told £900! And several hours labour. :eek:

Adrian E

28th April 2016 02:23 PM

Quote:

Originally Posted by HPsauce (Post 111233)

I've been told £900! And several hours labour. :eek:

I've left you a rambling voicemail!

HPsauce

28th April 2016 02:34 PM

Quote:

Originally Posted by Adrian E (Post 111237)

I've left you a rambling voicemail!

Thanks, got that. Minimal mobile reception where I am at present. Mines an FBG gearbox.

I've been told parts are on backorder as well, so I'm getting the car back tomorrow without that done, though I think they've checked and cleaned the plug, which was OK.

HPsauce

28th April 2016 03:51 PM

Quote:

Originally Posted by HPsauce (Post 111240)

I've been told parts are on backorder

I think they've got some part numbers mixed up, they should have these. :tuttut:
Thankfully Adrian has given me the right numbers (having had this done not so long ago) and I've passed them on. +++

The service managers description of the work corresponded with Adrian's description, so I think they have the right job, just an error in passing on the part number.

steamship

28th April 2016 04:56 PM

Quote:

Originally Posted by HPsauce (Post 111233)

I've been told £900! And several hours labour. :eek:

Was trying to find some info on this late last night, but only one I could find was related to a modern Audi (A6 Allroad), and the cost was around £700. Hoping they made a typo in the part number to come to that price!

ainarssems

28th April 2016 05:16 PM

It appears there are 2 possible switches depending on gearbox code, one with 8 pin plug about £350 and one with 10 pin plug about £180

HPsauce

28th April 2016 05:17 PM

It's the 10-pin for my FBG gearbox - 01L 919 821 B at £153.09 plus VAT. ;)

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