W460 brake fluid reservoirs

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3gtf
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Location: preston Lancashire

 

i seem to have two brake fluid reservoirs in my 1987 300gd non turbo.

The one on drivers side is full and fine .the one ear battery is empty with no hose what's this for.

 

 

spike1
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Re: W460 brake fluid reservoirs

I think that is your diff lock fluid, there should be a small pipe around 15 mm coming out if the bottom of it, it might have come loose or perished around the join, do your diff locks work?   

Pistonhead
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Re: W460 brake fluid reservoirs

The reservoir near the battery is for your front and rear diff locking cylinders.

There should be a hose going directly down to the near side of the chassis frame where it should connect to an "F" shaped join.

The join feeds the front and rear diff lock cylinders. Normal DOT 4, mineral brake fluid is used in this system. 

3gtf
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Location: preston Lancashire
Re: W460 brake fluid reservoirs

Many thanks no the diff locks don't work .if I put oil in is there a chance they might heal in a god like way and work .or is it get some money out again time

spike1
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Re: W460 brake fluid reservoirs

Lol! You might be in luck but you will have to find the pipe first, if you do and it doesn't leak and you can connect it, it just pushes on with a clip to hold it in position, fill it up and bleed the locks, you never know!!!    

spike1
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Re: W460 brake fluid reservoirs

You might want to make sure the pipe is clear before you fill the reservoir up!!

3gtf
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Location: preston Lancashire
Re: W460 brake fluid reservoirs

Went to my local old school mechanic.at 5pm on ramp found pipes rotted.all replaced and purged dot4 fluid through to 15 minutes.front and rear diff fully working now.found both indicator cables cut by exhaust fitter they'll be done tomorrow.

£40 two hours labour and pipe and fluid.

THANK YOU FOR YOUR ADVICE

my mechanic hates all cars and for the first time ever commented how clever the diff lock systems are especially for it's age.

spike1
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Re: W460 brake fluid reservoirs

Excellent news, glad you have it sorted.