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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53902
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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1999 e320 while driving started losing power like out of

Customer Question

1999 e320 while driving started losing power like out of gear.After giving gas rpm goes up like car is in neutral. Not move at all. After shutdown started again put in gear. Car moves ok for few minutes then same problem startedIt's drives after shutdown and restart..
JA: How many miles are on the car? How old is the battery?
Customer: Battery is decent and have 120k
JA: Are you hoping to fix this yourself?
Customer: Will try if possible
JA: Is there anything else important you think the Mercedes Mechanic should know about your Mercedes?
Customer: No
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mercedes Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Mercedes
Expert:  Joe Barfield replied 1 year ago.

Hello, it does this every time & do yo hear a buzzing noise ?

Expert:  Marty replied 1 year ago.

Hi, my name is***** transmission is going into limp home mode. This is usually caused by faulty speed sensors in the transmission. To repair the problem you will need to replace the conductor plate in the transmission which contains the speed sensors. You should get the car connected to a Mercedes diagnostic tester to read out the fault codes in the transmission control unit. If there are speed sensor codes the conductor plate will need to be replaced. The fluid level in the transmission should be checked first using the Mercedes 722.6 transmission dipstick tool.

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