Compression test
08-07-2017, 11:12 AM
#1
Compression test
I'm looking to do a compression test on my M273.
Does anyone know which fusees need to be pulled to disable the fuel pump and stop the coils from sparking ?
I don't have access to WIS to get this information.
Does anyone know which fusees need to be pulled to disable the fuel pump and stop the coils from sparking ?
I don't have access to WIS to get this information.
08-07-2017, 02:14 PM
#3
My VIN ? Are you serious ?
I've got an E550 2010. The procedure should be engine specific, not VIN specific.
Was there some kind of wiring change or something for these cars ?
I've got an E550 2010. The procedure should be engine specific, not VIN specific.
Was there some kind of wiring change or something for these cars ?
Last edited by - Mover -; 08-07-2017 at 02:51 PM.
08-07-2017, 03:53 PM
#4
MBWorld Fanatic!
You should be able to find and pull the correct fuses/relays in the fuse box under the hood, which has labels under the fuse box cover. Just find the fuel pump stuff and you should be ok.
It's usually recommended to have the throttle open when doing the check.
It's usually recommended to have the throttle open when doing the check.
