Alternator Replacement in Hackbridge, South London
Alternator testing and replacement at KITH Cars Garage in Hackbridge. Charging system test included. Drive belt replaced at the same time. All makes. From £280.
Transparent pricing — written quote before any work begins
Alternator replacement from £280 including alternator, drive belt, and charging system retest after fitting. Written quote before work begins.
What does the alternator do?
The alternator is a generator driven by the engine via a belt. It converts mechanical energy into electrical energy, producing current that powers all electrical systems and maintains the battery. A modern car draws 60–100 amps continuously at full load.
How to diagnose an alternator fault
The battery warning light is the primary indicator. Voltage at the battery terminals should be 13.8–14.4V with the engine running. We test output voltage, ripple voltage (indicating diode failure), and belt drive condition before recommending replacement.
MHEV and smart charging alternators
Many modern vehicles use a smart alternator managed by the ECU. Mild hybrid (MHEV) vehicles use a belt-integrated starter generator. These require diagnostic equipment to test correctly — a simple voltmeter test is insufficient.
Book your alternator replacement
Unit 1, Soho Mills, London Road, Hackbridge SM6 7HN.
Mon–Sat 8am–8pm.
Alternator Replacement in South London — Questions Answered
Common questions about alternator replacement at KITH Cars Garage, Hackbridge.
My battery warning light is on. Is it the alternator?
How long does alternator replacement take?
Does alternator replacement include the drive belt?
Where is KITH Cars for alternator replacement near South London?
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020 4629 9469What our customers say
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