W108 brake booster - what else will fit? - Page 2 - Mercedes-Benz Forum

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post #11 of 16 (permalink) Old 03-13-2011, 08:40 AM
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Vehicle: 1967 W110 230, 1972 250c
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Brake Booster

I have a LHD W110 and the W108 booster fit in and I have been driving it that way for a couple of months. I will take a photo.

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post #12 of 16 (permalink) Old 03-13-2011, 09:48 AM
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According to EPC, the brake booster for your car is 000 430 55 30. EPC says it also fits "some" of the following bodies W108, W109, W110, W111, W112 and R113. I may have a good used. I will check later today and let you know. EPC also shows a rebuild kit 001 586 41 43. Not sure if it is still available or not. Hope this helps. Does your booster have a screw on booster line or the type that pops into a grommet? I'm thinking the grommet type for the 250S.

1993 400E
1993 300TE Wagon
1985 300D Turbodiesel 688,000 miles on original engine/trans
1979 300SD
1977 Euro 6.9
1967 230S IMA Universal Wagon
100 or so MB Parts Cars

You cannot change your future without disturbing your present.
It looks a whole lot more like it does today than it did yesterday?
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post #13 of 16 (permalink) Old 03-22-2011, 09:23 PM
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I have an early 68 280S needing a brake booster. Do you know if the boosters built for chassis #15700 and following will fit the earlier cars if the master cylinder is changed as well?

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post #14 of 16 (permalink) Old 03-23-2011, 05:17 PM
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Those brake boosters are crimped together. I really don't know how the average owner can rebuild one. I could be wrong though.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

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post #15 of 16 (permalink) Old 03-26-2011, 03:48 AM
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Originally Posted by drew56cus View Post
Bla8310, I would do some careful checking before trying to fit the W108 booster to your fintail. I tried this a few months ago and found the following problems:
- the booster is a little bit bigger in diameter and the mounting bracket on the back is different
- the mounting bracket of the W108 tilts the booster up so it clears the seam on the chassis rail. It also has a different bolt pattern to the finnie
- I tried to swap the mount over, but the booster is too big to clear the chassis seam at the bootom, and the inner fender

Now this was on a right hand drive car - I don't know if LHD would pose fewer problems. But you would have to consider using the W108 bracket and drilling new mounting holes through the firewall to provide clearance. Then the brake pedal won't quite line up - if you just try to make it fit I would be worried that the pedal may bind up? I don't know, but I found it a whole lot easier to ring around and find a used booster and get that tidied up and installed.

Sjak, to have a booster rebuilt in Australia only costs about $200. If that is beyond your budget, I don't think a Benz is the right car for you?!
On one of my finnies, someone put a W123 booster on. As the finnie has a smaller inner fender indent than a W108 it deosn't really work, but it may do on the 108.

Cheers, Drew in Oz
Hi Drew, its not really a matter of budget at all. Its more a matter of locating the correct parts. Besides, labor tends to be more expensive here than in any other part of the world, so I dont want to pay for unecessary "trial and error"-hours by the shop where the car is now
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post #16 of 16 (permalink) Old 03-27-2011, 04:06 PM
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The early model 280S did not have brake problems. I think that they replaced the booster with one that they were using on other models and didn't change anything else on the car. This was a way of saving production costs. Nothing else, except the corresponding master cylinder seems to have been changed. That's why I started my thread. Unfortunately, the mechanics who worked on the cars at the time are few and hard to locate so I thought someone experienced with the cars might know.

It's very difficult to find used parts in my neck of the woods, because there are few of these cars around.

On the one hand it is quite possible to fix the problem by just spending money and the dealership is quite happy to help in this regard.

On the other hand, perhaps there is a place for some thought and discussion as well. Some of us like working on the cars.
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