S500 starting.

This is after I installed the rebuilt engine wiring harness, no more crazy tach.

Category:

Autos & Vehicles

Tags:

• Mercedes-Benz
• W140
• 500SEL

[joegolden481]

The old Chattanooga car...Glad to see it running!

[vanwiek]

@joegolden481 That's her, she's a champ. Well after I replaced the engine harness.

[mgewarges]

It would be great to see pics of the old & new. Installing the harness looks fairly doable to me... I'm worried about the body harness being a problem, looks like an impossible job, anyway, I'll start with the engine harness and pray it solves my problem. I've been reading other posts in forums and it seems like this should have been a recall. Everyone is ticked off about this issue. Some guy has only 42,000 miles, garage kept 1995 W140 and his harness went bad too! Unbelievable!!!

[vanwiek]

@mgewarges Sorry, I totally forgot about this. The photos are at the link below, there are pics of the new harness being built and of the old harness. vanco-it .com/ photos/ thumbnails.php ?album=186 (remove all spaces)

[mgewarges]

@vanwiek Thanks, great job!... Installed a new harness last month. My tach still shakes at engine start for 4 seconds. Seems fine other than that. Wondering if you have any issues with engine temperature. I live in San Diego, on hot days with AC on the coolant temp rises to 110C on uphill freeway driving, but drops down to 85C when going downhill. Do you have similar symptoms? Replaced the Tstat, water pump, fan clutch and coolant. I read that those temps are normal. I've got a 95 S600 coupe.

[vanwiek]

@mgewarges As for the temps I was getting very high readings as well, sometime very close the 120C. I replaced the cap, Tstat, water pump, and coolant and was going to to replace the radiator itself. On a whim I replaced the new cap and that solved my problem. It wasn't holding the proper pressure in the system.

[speed7119]

I LOVE THE OLD MERCEDES!

Better engineering, better lines of beauty, better chassis, better materials!

is like a life partner never leaves you.

[vanwiek]

@mgewarges Yep, that was the one. I had long spans of wires that had no insulation on them at all. I've got pics of the old and new harness that I built.

[mgewarges]

Was it the harness that connects down the top of the engine to the injectors, MAF etc? I noticed on my S600 there's a Main body harness that goes underneath the computer, however the engine harness is separate from that and is likely more problematic.

[vanwiek]

I rebuilt it myself, it's not something that I would do again. It took a whole weekend.