gearchange probs

[sgt bash]

hi, i have an ml 270cdi and there is an intermittant gearchange /revs fault with it at the moment , when you drive it from standstill occasionally , getting more frequent of late,the gear box wont change up and it will not rev above 2500rpm,it can be reset by switching engine off then back on again,works every time but i have also noticed if you drive from standstill but drive it hard to get gears changing and engine revving it will work fine all day? any ideas:bannana:

 

[Dieselman]

Get the codes read but it could be as simple as the MAF sensor going down.
probably cheaper to replace it than have the codes read.

 

[BlackC55]

Seconded.

 

[sgt bash]

forgot to mention there are not fault lights coming on not sure if there are any for this? thanks for advice

 

[television]

MAF thirdited

 

[recycled]

fourthed

 

[BlackC55]

forgot to mention there are not fault lights coming on not sure if there are any for this? thanks for advice

Unlikely to bring up a light.

 

[sgt bash]

where is the maf located on the ml and is it an expensive part?

 

[television]

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=163113%5F04S&M=612%2E963&GA=722%2E661&GM=716%2E644&CT=M&cat=21T&SID=09&SGR=015&SGN=01


14 in the link

If it is a Bosch, get one from any Bosch service center ½ the MB price

 

[Dieselman]

It will be a Pierburg MAF and they are about £50 from the dealers.

 

[BlackC55]

£40ish from Euro.