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Old 03-16-2002, 01:16 AM
ke6dcj ke6dcj is offline
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Join Date: Apr 1999
Posts: 2,632
Again, the fuel-cooler is ONLY in operation when the A/C is turned-on, its function is to reduce the formation of vapor bubbles on the RETURN/EXCESS fuel from the fuel-distributor as it returns to the tank.

Note- it's for USA cars because of the extreme heat in our SouthWestern states (e.g., DeathValley, CA; Arizona, Nevada, etc.)

This was taken from the M104 and M103 Engine Service Manual from Merceds-Benz.

:-) neil
1988 360TE AMG
1993 500E

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