Replaced the oil cap on my M113 engine. This is a newer style cap but will work on the older models, including my 400E and M119 engine. Advantage is easier grip to open/close. The old one’s seal also started to peel apart.
After replacing 2 ignition coils, one of the cylinders still gave a misfire upon redlining the car. The spark plugs are relatively new so I decided to refresh the still original ignition wires. There are 16 of them with different lengths and part numbers. If you want to get the OEM set, that is Bosch […]
Last week I had an issue with a misfire after the RPM hit over 4500 roughly. This put the car in limp home mode, misfiring the whole bank. Below are some screenshots of the error codes that would have to be cleared after each CHECK ENGINE light came on. I quickly pinpointed it to the […]
While on our trip to NJ I got a Check Engine light. Read the lean mixture error and it came out for either left or right bank oxygen (lambda) sensor. Earlier models of the R129 had less sensors, but my 1999 MY with M113 engine has two upstream and two downstream. Based on anecdotal evidence […]
The A/C was working for the first few minutes then had to be turned off for a long time before it worked again. Did diagnostics from the A/C console and found the temperature for the evaporator was not correct. Easy to get to.