Hi, my 730i has a slow coolant leak, maybe 1 litre every 2 weeks. The only clue I have is that it seems to be pooling somewhere and if I brake hard it then splashes somewhere hot and I can smell it, in extreme hard braking from speed it will make a load of steam and look quite dramatic! Any ideas where it might be leaking?
Car has 80,000 miles. Water pump and thermostat changed DIY 11 months ago. Thanks.
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