1995 w124 m104 engine harness help!
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 50
Likes: 2
From: Ocean isle beach, NC
2003 SL500, 1997 SL500,1995 E320, 2000 BMW Z3, 1979 Ferrari GTB, 2000 MB C230K
1995 w124 m104 engine harness help!
I just replaced my engine harness (2933) with an updated used one (2933) and now it will not fire up. Turns over fine but no sign of trying to run. I double checked the connections and they seem to be correct. I DID NOT connect the oil pressure sending unit plug yet as I need to lift the car to get to it. Could that be an issue? Other than that any ideas? The car was running fine before changing harness but it has sat for 2 months without being started. I have not checked spark etc. Yet.
Thanks
I just found out the connector not connected is the crankshaft position sensor! That may be it!
Thanks
I just found out the connector not connected is the crankshaft position sensor! That may be it!
Last edited by sailawaysg2; Feb 11, 2021 at 04:25 PM. Reason: new info
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Joined: Nov 2015
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From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Absolutely sure? ...that you verified on EPC, or even with MB parts, the harness part # replacement is the correct one.
EPC will typically show footnotes for a component so it correctly matches to the correct 'as of' or 'up to' vin# noted on the footnotes.
I seen several recent mistakes DIYers have done with harnesses as well as with speed sensors.
EPC will typically show footnotes for a component so it correctly matches to the correct 'as of' or 'up to' vin# noted on the footnotes.
I seen several recent mistakes DIYers have done with harnesses as well as with speed sensors.
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 50
Likes: 2
From: Ocean isle beach, NC
2003 SL500, 1997 SL500,1995 E320, 2000 BMW Z3, 1979 Ferrari GTB, 2000 MB C230K
Actually, I spoke to Mercedes in Greensboro. The mechanic that has done those described the connector exactly and where it goes. I verified it visually.
if it EVER stops raining, I'll connect it and will update. It's really in a tight spot near the bell housing.
Thanks
if it EVER stops raining, I'll connect it and will update. It's really in a tight spot near the bell housing.
Thanks
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 50
Likes: 2
From: Ocean isle beach, NC
2003 SL500, 1997 SL500,1995 E320, 2000 BMW Z3, 1979 Ferrari GTB, 2000 MB C230K
FIXED!!!!
I just replaced my engine harness (2933) with an updated used one (2933) and now it will not fire up. Turns over fine but no sign of trying to run. I double checked the connections and they seem to be correct. I DID NOT connect the oil pressure sending unit plug yet as I need to lift the car to get to it. Could that be an issue? Other than that any ideas? The car was running fine before changing harness but it has sat for 2 months without being started. I have not checked spark etc. Yet.
Thanks
I just found out the connector not connected is the crankshaft position sensor! That may be it!
Thanks
I just found out the connector not connected is the crankshaft position sensor! That may be it!
Thanks!
