My 92 300D has worked flawlessly (other than garden variety repairs) over the last 110,000 miles....currently has 244,000. This afternoon, my son was pulling onto highway, hard acceleration, and heard a clicking sound from the engine compartment and noticed LOTS of white smoke coming out the tailpipe. So he pulled over and called me.

I was able to replicate the symptoms and drove the car four miles home. However, by the end of the trip the clicking had stopped and the white smoke almost disappeared.

Oil level is fine, coolant level is fine.

Earlier in the day, I replaced the o-ring on the stop lever. Can't imagine I could have messed anything up on the IP, but who knows? Also, I added a quart of dino oil to a system filled with 5w40 synthetic (I have an oil leak somewhere and didn't want to dump in liquid gold).

As I read some threads, I thought I'd toss this out and see what anyone's thoughts are.

I also notice an oil leak by the #1 exhaust pipe.

Thanks.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife