Stop-start, the system that acts with blink-of-an-eye speed to save fuel in traffic queues, has not just come of age, it’s something car buyers now expect.
In urban situations especially, stop-start should be making a real-world difference, but will the durability of engines be affected in the long term?
A conventional electric starter motor works by engaging a small pinion gear with a large ‘ring’ gear fitted around the outside of the engine flywheel.
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