Hey Pros,
I'd appreciate if anyone can give me a hint on the right type of brake fluid for ML320 (year 2000). On the reservior cap it calls out for DOT 4+. Dose this mean DOT 5 is even a better choice? How about DOT 3 & 4 ? Does Synthetic fluid better than the conventional one?
Thank a million for your kind response,
BR/PY

No, do NOT use Dot 5!

Dot 4 or Dot 4+ is correct.

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Just out of curiosity, why is DOT-5 Brake Fluid not recommended? I was under the impression that the higher number included specs for the lower ones.

Cheers,
Jeff

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I bought a litre of MB DOT 4+ the other day from my local dealer, and it was "only" $9, which is not too outrageous (not like say the gallons of coolant).

Stick with the MB fluid on this one. It is cheap insurance against problems.

You a system that has NEVER has regular brake fluid to convert to Dot 5.

You would need to have gallons of Dot 5 to get the system clean enopugh to run

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Hey Pros,
Could anyone provide a an answer for the correct bracke fluid to use on a Year 2000 ML320. On the reservior cap it says to use DOT 4+. Does this mean a DOT is even better? How about DOT 3&4? Is synthetic brake fluid is better than the traditional one or vise versa?
Thanks for your advice,
BR/PY

From what I understand DOT 4 is the same as DOT 3, but has a higher boiling temp. Dot 5 is not to be used with Antilock brakes.

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1984 300SD Orient Red/ Palomino
1989 560SEC
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DOT 5 is silicone fluid and is not to be mixed with DOT 4.

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