What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
Why has the battery in my car failed after just three years?
What type of stop/start battery is fitted to my Mercedes B-Class and why has it failed? The car is less than three years old and the mileage is 28000.
Asked on 26 November 2019 by Allan Monk
Answered by
Honest John
It will be an 020 Bosch AGM Stop Start Battery S5A15, costing around £230. The usual reason for failure is not driving the car far enough often enough, though, as you rightly suggest, 28,000 miles in three years should have been enough to keep the battery fully charged and at full capacity.
Tags:
stop-start
battery life
Similar questions
I have some doubts about the benefit of this facility. Every time I come to a stop with foot held on the brake the engine stops and release the brake and the engine fires up. This means that the battery...
I have a SEAT Leon, the engine stops at traffic lights etc and restarts automatically when you are free to go. Recently the car does not restart and a message says restart manually.
Is this a sign that...
My stop-start engine stopped, as per normal, at a set of traffic lights - but then wouldn't automatically start again. Why's that?
Related models
Loads of cabin space front and rear, excellent safety kit, good range of efficient engines, classy image.
Elsewhere on 
.jpg)
