High Revs & Semi auto not working

[Joejunior19uk1]

Hi I’ve got a C class W204 model a few weeks ago I had 4 new injectors & a new DPF fitted.

Since I got the car back it now revs very high before changing gears & also at times when slowing down to what would probably be the speed for 1st gear it becomes very jerky. I’ve also noticed that the semi auto no longer works so even if I’ve selected manual the car just changes gears itself.

There is also a lack of power at high speeds. Last night was travelling about 70mph & when I pushed my foot to the floor there was no reaction where as previous it would drop down a gear and pick up more speed.

Any help would be much appreciated

 

[ChrisRyan87]

Hi there, how did you get on with your fault? Sound very similar to the problems I was having.
Turns out to be a blocked dpf - 299% blocked ( figure from diagnostics ). Dpf currently removed and sent away for cleaning.

Could be wrong, but sounds as if the car was doing a passive regen. Didn’t know that at the time, but after hunting around forums, that’s the conclusion I came too.


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