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C250TD (w202) - Direction of flow through heater assy?

markw996

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Joined
Dec 6, 2009
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Hi,

I have a 99 C250TD on which I'm doing a conversion to run it on vegetable oil.

I have a flat plate heat exchanger to fit in parallel with the heater matrix so that the it is permanantly fed by hot coolant, but with all the duo-valves etc I can't work out where to 'Tee' into the coolant system :wallbash:

On my old Vauxhall Cavalier it was easy as there were only 2 hoses to the heater matrix, IN & OUT! :thumb:

I need to 'Tee' into smaller diameter pipes wherever possible.

Can anyone help with a description of how the coolant flows around this OM605 engine, or even a parts diagram so I can work out which hose goes to what?

Thanks,
Mark.
 

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