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About whunter
Expertise
Mercedes Benz diesel 1960 - 1985. Rolls-Royce or Bentley 1959 - 1978. Jaguar 1960 - 1989. MG 1959 - 1985. British 1923 - 1969. Micro and mini cars, an area of interest and study, I will try to answer questions on these. Domestic car/light truck 1903 - 1975

Experience
30 years Automotive Field Experience.
ASE Double Master Mechanic.

Organizations
ACTIVE MEMBERSHIPS:

Cadillac-LaSalle Club http://www.cadillaclasalleclub.org/
Rolls-Royce Owners Club    http://www.rroc.org/
Lake Michigan Region
Motor Region    http://www.rroc-mr.org/index.htm
Ohio Region
Modern Car Society http://www.rroc.org/members/regions/mcs/
Silver Cloud Society   http://www.cloudsociety.org/
Rolls-Royce Foundation    http://www.rollsroycefoundation.com/
Rolls-Royce Owners' Club of Australia    http://www.rroc.org.au/cgi-bin/newforum/discus.pl
Mercedes-Benz Club of America    http://mbca.cartama.net
International Stars Section    http://www.internationalstars.org/
mercedesshop.com Diesel Discussion    http://www.mercedesshop.com/shopforum/
JAGUAR CLUBS OF NORTH AMERICA http://jcna.com/forums/index.php
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Rolls-Royce and Bentley, Modern Lady.

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ASE CERTIFIED: Master Auto Technician.
   Brakes, Engine Repair, Auto: Engine Performance, Auto: Suspension and Steering,               
   Heating & Air Conditioning, Auto: Electrical/Electronics systems, Manual Drive Train and Axles
   Automatic Trans/Transaxle
ASE CERTIFIED: Master Med/Hvy Truck Technician.
   Brakes, Diesel Engines, Gasoline Engines, Electrical systems, Suspension & Steering, Drive
ASE CERTIFIED: Alt. Fuels: Light Vehicle Compressed Natural Gas          
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GM, Steering service class.
GM, Vibration correction training class.
ISO 9000 Training.                                                   
Blueprint Reading and Engineering Drawing Interpretation:   
Study of Steam Power, Certificate of Achievement:
DALE CARNEGIE TRAINING COURSE:
Refrigeration applied electricity and heating Certification:
Refrigerant Transition and Recovery, residential and commercial service.
Refrigerant Transition and Recovery, (IMACA).

BASIC Skills:
Welding: ARC/Mig/tig and gas. Blue print reading/layout, steel erection and rigging, wiring AC/DC, hydraulics, pneumatics, some lathe, mill, fabrication and instrumentation experience.

 
   

You are here:  Experts > Shopping > Cars > Mercedes > shifting problem

Mercedes - shifting problem


Expert: whunter - 5/17/2007

Question
My daughter recently purchased a 1983 240D and drove it from South Carolina to Washington State. The ODO says 230K. It is having to accelerate beyond where it would normally shift and then it shifts hard, with a surge forward. She took it to a well-known national transmission repair shop that said the "micro vacuum switches" were bad and the transmission was "toast". I am not convinced this is the case. The trans fluid is clean, no smell to it and no sign of any metal or contamination.  This was a one owner car, no maintenance records available, but it was well maintained. The CARFAX showed it had been not registered/on the road from 1998 to November 1996. Any suggestions of 240D automatic trans shifting issues? Please help!  

Answer
Answer:
This sounds like a B-piston issue = easy DIY.
Here is a link to the data you need.

ShopForum > Do It Yourself Links & Resources > DIY Links by Parts Category  
Transmission:  
http://www.mercedesshop.com/shopforum/showthread.php?t=142395

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