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Old 08-31-2002, 10:30 AM
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Join Date: May 2000
Posts: 376
Transmission vacuum modulator replacement.

Hey all,

My modulator (190e) appears to have a slight leak when I put vacuum to it. I assume this is not normal. I crawled under the car to get a look and as usual, there is no room to work. Also, I can not find any reference to this repair on the M.B. CD.

1. It is right up against the tunnel. Can you remove/replace with the trans in the car?

2. How is it held on the trans? Is it a press fit?


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Old 08-31-2002, 11:40 AM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
The modulator is held in with a single bolt and a bracket. It will be real difficult on a 201 car. You may have to lower the unit by removing the trans mount. You may have to further lower it by disconnecting the driveshaft.

I don't think I have ever done one on a 201 with the trans in the car. It's hard enough just to adjust it. Terribly tight situation.
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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