C270 Wont kick down

[Mark Ager]

Ive recently had a few problems thought id got over them doing EGR delete, but still a few bugs, im pretty sure my cars not goin into limp mode. But its changing gear at 2000rpm or just over even when im flooring it pulls well upto that point but chnges up, when cruising wont kick down when i floor it but does accelerate then change up??? It is sometimes doing it (and then pulls like a train) but rarely ive got a service friday which 55 days late but this couldnt cause it....could it?

 

[walsi]

Hi ya, it is in limp mode, the next problem is finding out why which is beat done on a star machine. The classic signs of limp mode are shifting up gears at around 2000, 3000 limit and no kick down and it could be caused by anything but i would be surprised if it is the fact that the service is 55 days over due but it could be down to a service item

Martin

 

[Mark Ager]

Yeah it was a bit silly i was just waiting for the MOT to get a discount, i'll see what it come back with then do you no if the egr delete will be shown up on the service/mot if so should i pre warn them?

 

[walsi]

If it goes on a star i would expect it too but it shouldn't cause a problem at all and as far as the mot it will make no difference, what will make a difference is something else being wrong but at the end of the day it is your car and doesn't belong to merc so it is up to you what you do to it, just be careful of any bull**** they spout and listen carefully to what you are told and if there is any doubt come on here and ask

Martin

 

[Mark Ager]

Ok, yeah i no what you mean ive made it crystal to them not carry out any work just to report to me. When i previouly went to this independant they straight away did the old teeth dryer and said "well with these mercs its open cheque book time". i said actually its leaving time chump!

 

[MR-AUTOMATIC]

Hi what year is your car & its not because your late for your service that the car has went faulty does the car shift up all the gears but its late shifts with on kickdown ?

 

[Mark Ager]

Its an 02, yeah relly late on a kick down if it does it at all, sometimes its fine rarely that it is

 

[panason1c]

Symptoms sounds like 'maf' faulty to me. (buy only from MB, NOT off ebay)

Definitely NOT related to overdue service.

 

[MR-AUTOMATIC]

Hi check the wire loom from the gearbox up to the transmission ECU oil can leak from the gearbox & go up the loom & into the transmission ECU which can play tricks on the gearbox also check the ABS wheel sensors if one is faulty this will cause this problem to