CHRISALIS, welcome to the forum.
You may have some products in france we don`t have here, or by product name.

Vinegar works in coffee pots like the Bunn with the hot water tank, which scale up with calicium. don`t know if it works in auto engines though.

Mercedes sells Citric Acid in one pound containers for the flush, and I have seen it sold on E-Bay. Don`t think MB would sell he product if it would take out the radiator, water pump etc... Probably was removing gunk and crap that was holding things together that were close to going anyway. would rather find the problem with a flush, than have a failed componet out on the road.

Do a search on Citric Acid, there is plenty of info on it.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works