Boost hesitation and intermittent lack of power

[antonys60r]

I agree . I've had mine 6 years so far. I drive a truck for a living and it's nice to cruise home after work.

[kmb]

I fancy changing those valves as a serviceable part on my 850... I've already done the BCS and all vacuum lines.

Are those valves (#MA000 431 61 07) the same as the ones on the 850 T5?

I've seen where one of them is i.e. right hand side of the radiator as you look at the car - where is the other one, if there are also 2 on the 850?

At the risk of being a pain on these Merc valves, any idea where I can order them online?

Cheers - I'm stuck in France for at least a month, and my usual ebay searches have proven useless, with no knowledge of where the Merc chaps order their parts online.

[htomi]

Just buy the Volvo ones.
One-way valve (black & white) 9485451 fits for second gen R.

[kmb]

Just buy the Volvo ones.
One-way valve (black & white) 9485451 fits for second gen R.

Not at 5 times the price

[kmb]

Just to add to this thread (I know it's an 850 T5 in the wrong place).

I've just bought a couple of those £4 each Mercedes one way valves #MA000 431 61 07 and next week will replace my original 140k mile old items as a serviceable item.

All other vacuum pipes and BCS previously changed for new.