Only 12v because mains is not practical for me, it will only be switched on for a few mins after starting and on over run when cold. I want it both for eco and heating/defrosting in the winter.
From what iv read its 400w and is fitted to 2l to 3l, 4 and 6 cylinder engines, mine is only 1.7l. BMW owners have reported increased warm up time when it fails so it sounds like it could be ideal for my needs/wants.
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