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Engine issues when petrol low

I have a BMW 116 2006 model where everything seems to be fine until petrol is low the symptoms start to show. First the engine management light will come on and than there will be a loss of power on acceleration. After filling it up with petrol again they seem to disappear again. Any ideas what it might be?

Asked on 11 June 2015 by MZ

Answered by Honest John
Reads to me like contaminated petrol. When you get to the dregs in the tank you start to have problems. Alternatively, the fuel pick-up in the tank could be loose and starts to float when it is not submerged with fuel.
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Great to drive and superbly built. Wide choice of models, improved from 2007 with Efficient Dynamics. 118d is super economical.