MAF Blowing Fuse S320 CDI - Wiring

GoldorSilver · 17-11-2008, 08:43 PM

Hi,

I have a W220 S320 CDI 51 plate and have got the 7.5A fuse blowing that supplies the 12v to the MAF. Have just replaces the wires direct to the ecu the MAF has been changed and it still pops in about 20 seconds of starting the engine. You know when it has gone as the Coolant warning comes on the dash and it goes into limp mode.

The fuse is in the box left hand side of engine at the rear looking at the engine it is the 6th fuse down and I have no fuse diagram or wiring diagram available. Can anyone tell me what else uses this fuse so I can check for a short and has anyone else had this problem or a simialr one.

Thanks.

PJayUK · 19-11-2008, 01:28 PM

According to my fuse diagram thats for the engine fan. Cant see anything that mentions its for the Mass Airflow... Then again mines an s320 petrol, maybe diesel is different

17-11-2008, 08:43 PM	#1
GoldorSilver New Member Join Date: Nov 2008 Posts: 1	MAF Blowing Fuse S320 CDI - Wiring Hi, I have a W220 S320 CDI 51 plate and have got the 7.5A fuse blowing that supplies the 12v to the MAF. Have just replaces the wires direct to the ecu the MAF has been changed and it still pops in about 20 seconds of starting the engine. You know when it has gone as the Coolant warning comes on the dash and it goes into limp mode. The fuse is in the box left hand side of engine at the rear looking at the engine it is the 6th fuse down and I have no fuse diagram or wiring diagram available. Can anyone tell me what else uses this fuse so I can check for a short and has anyone else had this problem or a simialr one. Thanks.

19-11-2008, 01:28 PM	#2
PJayUK Hardcore MB Enthusiast Join Date: Oct 2008 Location: Surrey, United Kingdom Car: ML320 (have to admit it, I really like it!) Posts: 368	According to my fuse diagram thats for the engine fan. Cant see anything that mentions its for the Mass Airflow... Then again mines an s320 petrol, maybe diesel is different __________________ My current cars Mercedes ML320 W163 Jaguar XJR 4.0 Supercharged Subaru Forester 2.5 XTen Previously enjoyed! Triumph Dolomite Sprint Escort 1300e Capri 2.0S Various mid 80's Ford rubbish Mercedes Benz S320 LWB W220 Caterham 7 BMW 320i convertible Jaguar XJ8 Sport Audi A8L And others!.....

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)