Mercedes W202 C200 surging...

[sam-orr]

Hi guys, got any ideas on a W202 that surges badly in first and second but stops when its up to temperature? I'm stumped. It's a pain in the rear.

 

[azzyc200]

Happend in my car I changed my diff oil, gearbox oil, and cleaned maf sensor. Was fine again

 

[martyz]

Oil won't make it surge,Maf will,be warned clean at your peril,if you do use IPA aerosol(Maplins sell it) about £9.you may get a result,or you may not,possibly worse.
If you decide to replace,only fit Bosch,there is no cheap alternative that works.

 

[azzyc200]

Oil won't make it surge,Maf will,be warned clean at your peril,if you do use IPA aerosol(Maplins sell it) about £9.you may get a result,or you may not,possibly worse.
If you decide to replace,only fit Bosch,there is no cheap alternative that works.

I cleaned maf with using eBay maf cleaner and worked for me

 

[martyz]

I cleaned maf with using eBay maf cleaner and worked for me

Was it causing a problem before you cleaned it? if it was,you got lucky.

 

[azzyc200]

Was it causing a problem before you cleaned it? if it was,you got lucky.

Yea it was giving problems soon as I cleaned it the problem went away and now it's been 4 months never failed a beat

 

[martyz]

I see you drive a diesel with the pierborg maf,OP has a 2.0 petrol which use a Bosch and are ultra sensitive.

 

[azzyc200]

I see you drive a diesel with the pierborg maf,OP has a 2.0 petrol which use a Bosch and are ultra sensitive.

yes so is there a different on cleaning and maf ?

 

[martyz]

As previously stated Bosch mafs generally don't always respond well to being cleaned.

 

[azzyc200]

As previously stated Bosch mafs generally don't always respond well to being cleaned.

I don't no if my water temp is high or low ? This is after driving 1 hour and stays same

 

[sam-orr]

I have recently changed the MAF for a brand new Bosch one, cost £138 or something. The surging is a real ****ter.

 

[Brycecunni]

Did the fault occur before or after the new maf was fitted? I have seen new MAF sensors causing endless issues on the 111 engine, even if they come from Bosch. I will probably start an argument here but the only sure fire way of getting the correct MAF is having an original MB one (expensive). Have you had the car on a diagnostic machine at all?

 

[sam-orr]

Hi mate, it was surging a little before the whole MAF saga and continued after I fitted a Bosch one. I'm going to get it checked over in the next week as its running rich also.