Here’s an interesting finding.. When noise is there, if I get a car wash (with underbody), noise goes away completely right after the wash. Engine is not turned off during the washing.
I don’t think it is engine, either. Buttery smooth at any RPM, as long as transmission is not engaged. So, what is it - I don’t know. My other suspicion is anything with exhaust, but in that case, why the noise is there only when on drive and accelerating - but not in neutral at any rpm
Hey guys,
I have a 2018 MB GLC300 and have a strange tapping noise. I was wondering if anyone has any idea what might be causing it.
How it sounds;
Camera can't pick it, no matter how I tried it, but it is very clear in person. It doesn't sound like a mechanical noise but I can't be sure...
if fuel dilution is the possibility here, any idea why I wasn’t seeing similar result on the previous run, which was Fram 0w-30? Is Fram 30 really high on viscosity grade, or was it because of a short run at 3k miles?
Definitely moving on from BS as their turn time is ridiculous. I’m planning...
Received the new report after they reran it. Reminder that all 6k miles were easy & calm driving with 35 miles each way daily.
I'll be looking forward to the next report with Mobil 1 Full Synthetic 5w40 SP I have in it now. Planning to run it to 5k now.
thanks for your comment. Filled with Mobil 1 Full Synthetic 5W-40 sp formula and curious what the results will be on this next run. However, please note that I was running fram 0w30 before this.
Click HERE for the previous UOA result (Fram 0w30 Non-euro oil)
Here’s my second UOA result and this time on Mobil 1 Full Synthetic 0W-40 (SP). Changed to Mobil 1 Full Synthetic 5w40 (SP formula) after this.
I’d appreciate your comments and feedback.
Oil: Mobil 1 FS 0W-40 (API SP Formula)
Oil...