CVT? throttle cuts out
04-13-2011, 09:09 AM
#1
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CVT? throttle cuts out
Only when cold & after a couple of mins driving - no throttle response after coming to a stop/slowing to a stop. Leaves me stranded at junctions!
Shut engine off - restart – Sits on 1k revs.
Place in neutral and it won’t rev whatsoever (tried for 30 mins once), place in Drive or Reverse and put foot down, after several attempts it’ll kick in, and then drive as normal for the rest of the day! - Always OK when warm.
Also, again only when cold, it’ll almost stall at junctions before surging back to normal tick over.
Indications
None! No transmission flashing lights, no CEL or DTC's, nowt in memory when scanned with VCDS
Tried
Throttle Body & Butterfly plate removed & cleared of gunk then re-aligned adaptation via VCDS
Garage checked for vacuum, lean codes and emissions ok
MAF & Air Filter replaced
Brake Pedal sensor replaced – it cut’s out throttle and is “known fault”
10 tanks of Premium fuel used, and countless injector cleaners/additives over past months.
This has been occurring for about once a week for 6 months now. I do 90+ miles a day and yet it only happens for the 1st few miles of when cold.
Any advice gratefully received!!
A4 cab 3.0 V6 Auto - ASN 8H7 2003
Shut engine off - restart – Sits on 1k revs.
Place in neutral and it won’t rev whatsoever (tried for 30 mins once), place in Drive or Reverse and put foot down, after several attempts it’ll kick in, and then drive as normal for the rest of the day! - Always OK when warm.
Also, again only when cold, it’ll almost stall at junctions before surging back to normal tick over.
Indications
None! No transmission flashing lights, no CEL or DTC's, nowt in memory when scanned with VCDS
Tried
Throttle Body & Butterfly plate removed & cleared of gunk then re-aligned adaptation via VCDS
Garage checked for vacuum, lean codes and emissions ok
MAF & Air Filter replaced
Brake Pedal sensor replaced – it cut’s out throttle and is “known fault”
10 tanks of Premium fuel used, and countless injector cleaners/additives over past months.
This has been occurring for about once a week for 6 months now. I do 90+ miles a day and yet it only happens for the 1st few miles of when cold.
Any advice gratefully received!!
A4 cab 3.0 V6 Auto - ASN 8H7 2003
04-13-2011, 10:04 AM
#2
AudiWorld Super User
Sell? Sorry...
Sounds like a mechnical problem with the tranny locking up and "overpowering" the engine. I know CVT's have a bad reputation for mechnically failing.
Sounds like a mechnical problem with the tranny locking up and "overpowering" the engine. I know CVT's have a bad reputation for mechnically failing.
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