Mercedes A140 starting and cooling fan problem

[Aaron Godfrey]

ecutesting.com they fully rebuild your maf/ecu for £149.99 plus vat works out to be around £170 with vat.

 

[Billy albert]

It's probably only a little piece they needs changing out they should bench test it first. Dud they ask you for ecu model number and did they say they can fully bench test it ?

 

[Aaron Godfrey]

yes they asked for all the numbers also they will do a test to make sure it is defective. I know the maf is nackered anyway. do you know about the connectors that plug in the back off the ecu/maf as I did a test with ignition on and the top connector has three live wires and three earths but bottom connector had no lives or earths!!! is this right or not?? thanks

 

[Billy albert]

Dunno about that without looking at pin out. If you find out they are meant to be power then it should be a quick fix hey

I know that the maf / ecu is combined on these and are prone to breaking, my ecu blew twice on my C32 and wasn't giving the fan any power so fan ran emergency mode. I fitted a harness with a 10ohm resistor from a sl 500 so ecu would not spike again. Apologies I haven't been much help

 

[Aaron Godfrey]

you been loads of help. will let you know what happens when I get my ecu back. thanks Aaron

 

[Billy albert]

Any luck with ecu