Search found 119 matches

by RogerSalesCar
Wed Mar 18, 2026 12:48 pm
Forum: General Car Discussions
Topic: The OM642 P0101FA is in limp mode and has reduced power as of W213 2019.
Replies: 6
Views: 252

The OM642 P0101FA is in limp mode and has reduced power as of W213 2019.

I'm having trouble with the Mercedes-Benz W213 and the code P0101FA. Icarsoft v2.0 has been used to modify the hfm settings, and I have also changed the air filter and mass airflow meter. When the engine rpm reaches 2.5–3,000, the car enters what seems like a limp mode with limited power. My car wen...
by RogerSalesCar
Mon Mar 02, 2026 12:37 pm
Forum: General Car Discussions
Topic: W639 perplexing glow plug issues
Replies: 7
Views: 863

Re: W639 perplexing glow plug issues

I haven't snapped one yet, here's hoping the trend continues. Before taking them out, I always make sure the engine is warm, but not too hot.
by RogerSalesCar
Mon Feb 23, 2026 11:29 am
Forum: General Car Discussions
Topic: 0W 30 over 0W 40 – brief road trips?
Replies: 10
Views: 1894

Re: 0W 30 over 0W 40 – brief road trips?

The oil formulator has painstakingly balanced the oil additives; trying to guess what they are is not a good idea. There is no guarantee that more of something would be beneficial. In the case of oil, for instance, increasing the concentration of specific anti-wear compounds has the opposite effect ...
by RogerSalesCar
Mon Feb 23, 2026 11:25 am
Forum: General Car Discussions
Topic: 0W 30 over 0W 40 – brief road trips?
Replies: 10
Views: 1894

Re: 0W 30 over 0W 40 – brief road trips?

The 0W40 should circulate just as quickly as the 0w30 because oil pumps are basically positive displacement devices; the only difference is the pressure required to accomplish that circulation. Oil is heated by what? Heat from the engine and oil-related frictional losses in the bearings caused by th...
by RogerSalesCar
Fri Feb 06, 2026 3:26 pm
Forum: General Car Discussions
Topic: Background noise in vehicle
Replies: 9
Views: 1341

Re: Background noise in vehicle

Are you sure you examined the exhaust heat shield?
by RogerSalesCar
Thu Jan 29, 2026 2:42 pm
Forum: General Car Discussions
Topic: Damaged ABS, EPS, Collision ASSYST, and Park Assist
Replies: 9
Views: 870

Re: Damaged ABS, EPS, Collision ASSYST, and Park Assist

It seems to me that your vehicle has electric power steering.