So after nearly 4 years of new car reliability I now have to rebuild this wiring loom (it's NLA from Mercedes.
).
It's the lower one that goes from the battery terminal in the floor of the car to the starter motor and alternator. The smaller wires are for the oil level idiot light, oil pressure gauge and alternator. All of them have cracked and powdery insulation so the gauges and lights aren't working properly. The fatter cables are OK so I only have to replace the four smaller wires. The car was running fine but I wont drive a car with a flaky oil pressure gauge.
Note this is a different part number to your LHD cars because the starter motor on the RHD cars is on the left side of the motor (As you're looking forward sitting inside the car).
Now that it's out of the car it looks fairly simple but it was an absolute "basterd" to remove. I've heard from other owners that cars have gone to the crusher because this wiring loom became faulty. It was a lot of work to remove but I've never understood that kind of thinking. (I replaced the top main engine wiring loom soon after I bought the car)
