From time to time I get a Pre-Safe Unavailable error on the display. This usually happens when starting from a stop. I hear a noise and feel a jerk in the car like a hard gearshift. The car continues to drive, but it does not shift gears. It seems to me that it stays in 3rd gear. If I stop turnoff the engine and restart the problem goes away.

I will appreciate any ideas on what to look for.

With out a complete scan....very little help is possible.

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Finally took it to the dealer. It was the conductor plate in the transmission. Total cost was $650.

Those new cars are not cheap to maintain!

I found an entire low miles engine for less $$ than that....

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