Tuning tips: Electric water pumps

obi_waynne

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A3 1.4 TFSI 150 COD
The coolant needs to run round the engine taking the heat from the block and dissipating it in the radiator. Most cars come with mechanical water pumps which have a number of drawbacks, www.CarTuningTips.com will take a look at the benefits of upgrading to an electric water pump. Mechanical pumps take a lot of power [...]
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What do you think of this tip then, read the article and post your comments in here.
 
mine has an auxiliary water pump which runs allows the heater to keep the car warm for an hour or so when the engine is off. BMW calls it residual heat extraction.
 

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