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Damo23

Original Poster:

4 posts

123 months

Thursday 6th February 2014
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Hi people, I'm new to this site but I have problem which I'm hoping I can shed some light, this morning as I was driving on the motorway the car was running fine and then all of a sudden it acted like it had no drive at all the engine revved up but no speed now I got home but alittle concerned as this is my first Audi it's a 07 2.0 tdi automatic, now normally if it's a manual and the engine revved up but no speed it normally the clutch but with it being an auto I haven't got a clue it happened in the semi auto system and normal drive mode if any one can shed some light I will be really greatful many thanks damien

Also I just had it scanned and it's come up as egr valve can this cause this limp home mode or drive like it did this morning as this is the first diesel I've every had

Thanks in advance

annodomini2

6,868 posts

252 months

Thursday 6th February 2014
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Slushy, CVT or DSG?

I'm guessing thats an OBD2 readout? which will only give engine faults.

Damo23

Original Poster:

4 posts

123 months

Thursday 6th February 2014
quotequote all
Not sure what I mean by that pal can u care to explain alittle more as I done understand ya post

Damo23

Original Poster:

4 posts

123 months

Thursday 6th February 2014
quotequote all
Well when it was scanned it came up as egr valve and some fault codes but why question is can the egr valve make the car go into limp mode and cause the car to rev up and no speed ??? And power to be lost as it seemed that the power to raise speed was dramatically reduced

anonymous-user

55 months

Thursday 6th February 2014
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"limp home" will not cause a slipping of drive torque. (it will limit how much torque can be made by the engine)

Slipping of the transmission is two things:

1) not enough oil pressure (low oil, blocked filters, failing oil pump)
2) Electrical fault causing clutch (either in gear train or lockout clutch in Torqueconvertor) to open in error (internal wiring fault, dodgy control ecu etc


I would get the oil level and quality checked ASAP as a first easy step!

Damo23

Original Poster:

4 posts

123 months

Thursday 6th February 2014
quotequote all
Ok I will get this checked tonight many thanks

annodomini2

6,868 posts

252 months

Friday 7th February 2014
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Slushy = Conventional Auto - Audi speak: Tiptronic.
CVT = Continuously Variable Transmission - Audi speak: Multitronic.
DSG = Dual-Clutch Automated Manual - Audi speak: S-tronic.