Does my BMW 3 Series have a serious suspension fault?

I own a 2013 BMW 3 Series GT with M Sport upgrade. Current mileage is 14,600. Last week a BMW main dealer gave it its first MoT. The rear tyres had worn on the inside – one more than the other – and had to be replaced. A couple of days later I noticed that the driver’s side rear suspension was slightly lower than the passenger side but the dealer has told me that the difference is 10mm which is within BMW tolerances and that a new coil is not needed. Do you think this will get worse? Did the lopsided suspension affect the way the tyres had worn? Should I push the dealer to rectify the fault – before the warranty expires in a few days’ time?

Asked on 25 November 2016 by L. Jones

Answered by Honest John
How heavy are you? 70kg should not have affected the way the car rides. 100kg plus, it could. Usually worn inner shoulders are caused by drivers trying to minimise the shock of speed blister humps by straddling them. This causes sever abrasion to the inner shoulders of tyres.
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