380 SE TRANSMISSION PROBLEM - Mercedes-Benz Forum

 
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post #1 of 4 (permalink) Old 03-09-2010, 04:17 PM Thread Starter
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Vehicle: 1983 MERCEDES 38O SE
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380 SE TRANSMISSION PROBLEM

I have a W126 380SE. I am told that although I have a four speed transmission the vehicle only uses three gears under normal driving conditions. The first gear is only used when the accelarator pedal is floored for a faster take off. If this is correct there is something wrong with my car as my first gear is constantly being used under normal driving conditions. As I have only had the car 6 months or so I naturally presumed that this was normal. Can any body help?
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post #2 of 4 (permalink) Old 03-09-2010, 06:08 PM
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Your gearbox should be a 722.3, which is a 4-speed automatic.

How do you know that it is staying in 1st (or 2nd gear)? From the rev counter? That certainly is not right and must affect your fuel consumption. However it's hard to believe that you really are driving in one gear all the time without damaging the gearbox. When was the ATF last changed?
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post #3 of 4 (permalink) Old 03-10-2010, 01:49 AM Thread Starter
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380SE Transmission problems

Thanks very much for the response. I think you may have misunderstood me. When I drive the car at all times the gears change through first to second to third to fourth normally. I am told however that the car should take off in second to third to fourth and will only use first gear when the accelarator pedal is floored from take off. I am unsure if this statement is correct
as the car has allways started in first then changed up through the gears normally.

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Originally Posted by keyhole View Post
Your gearbox should be a 722.3, which is a 4-speed automatic.

How do you know that it is staying in 1st (or 2nd gear)? From the rev counter? That certainly is not right and must affect your fuel consumption. However it's hard to believe that you really are driving in one gear all the time without damaging the gearbox. When was the ATF last changed?
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post #4 of 4 (permalink) Old 03-10-2010, 03:51 AM
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Henry - my apologies. You're quite right, I did totally misunderstand your post...

On the later 722.6 5-speed auto which I have, there is indeed a 'mode' switch to choose the style of driving, one of which will cause starting in 2nd gear, which is better in snow, etc. I'm not sure if that existed for your earlier system.

If you re-post your question in the dedicated W126 forum, there are plenty of guys there who own your exact model and will be able to share their experience with you.
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