Limp Mode At 70 Mph

[csj]

Hello just done a round trip of 300 miles and the auto gal 115 bhp kept going into limp mode at around 70 especially up hill . Seemed to pick up nicely at all other times , just a bug bear . Any ideas please thank you

[seatkid]

Likely sticky turbo vane mechaniam/actuator - common fault - needs cleaning. Search forum for forum for more information and remedies.

[gravesyt]

Had something similar a few years ago I was using cruise control at 70 hit a hill speed started to drop off at the top straighten out speed back to normal  it was the Maf the mechanic a senor Tec said it was one of the first sign of maf  failure but try cleaning it first

[csj]

Thanks for the answers , if the maf sensor is going wouldn't there be other symptons . Also it was definite limp mode no power what so ever

[gravesyt]

ye mine was the same on flats drives great when its under strain that's the tell tail sign if it was vanes/ actuator it would happen most of the time try a clean got a problem at the mo with mine something  similar only in 5 th gear but happening on flats if you have cruise control find a steep hill set cruise on and if the speed starts to dip on the way up  (it should cut out )then back to normal on the flat is the maf  and it will not show on vagcom

[csj]

Thanks for that I'll try :-)

[tim-spam]

If it was the MAF, it would happen all the time. 99% it's the turbo vanes.

[csj]

Do the cleaners like forte work ?