Mon–Fri 9:00am–5:00pm · Sat 10am–3pm
Don't replace what can be repaired. We diagnose and fix faulty engine control units at a fraction of the cost of a new unit.
From £250
Estimated 3 hrs
A faulty ECU can cause all sorts of problems — from a persistent engine management light to a car that won't start at all. A main dealer will almost always recommend a brand new replacement unit, which can cost anywhere from £500 to over £2,000 before fitting and coding. In many cases, the existing unit can be repaired for a fraction of that cost.
At Doyen Auto Services in Rutherglen, we have the diagnostic equipment and expertise to identify exactly what's gone wrong with your ECU. Common faults include blown capacitors, damaged driver circuits, water ingress corrosion, and corrupted software. We can repair the physical damage and reprogram the unit so it works like new.
ECU repair is especially valuable for older or specialist vehicles where replacement units are expensive or hard to source. We've repaired units for everything from everyday commuter cars to performance vehicles and classic cars across the Glasgow area.
Here’s what to expect when you bring your vehicle to Doyen Auto Services
We carry out a thorough diagnostic to confirm the ECU is the root cause and identify the specific fault within the unit.
The ECU is carefully removed and opened up for a detailed inspection of the circuit board and components.
Faulty components are replaced, damaged circuits are repaired, and the software is reprogrammed as needed.
The repaired ECU is refitted, coded to the vehicle, and thoroughly tested to confirm full operation.
We’re a specialist automotive garage in Rutherglen, Glasgow, with the equipment, experience, and honest approach to get the job done right first time.
Specialist ECU diagnostic equipment that goes beyond standard fault code readers
Experience repairing ECUs across a wide range of makes and models
Honest assessment — if a repair isn't viable, we'll tell you straight away
Conveniently located in Rutherglen for customers across Glasgow and South Lanarkshire
Common questions about this service at Doyen Auto Services
From £60
A comprehensive scan of every module in your vehicle. Find out exactly what's going on — not just the engine, but every electronic system.
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Don't ignore that warning light. We'll find out exactly what's wrong and get it sorted — properly.
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Specialist electrical fault finding for complex wiring, sensor, and module issues that other garages can't solve.
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Transfer all data from a faulty ECU to a replacement unit — no dealer visit required. Get your vehicle back on the road quickly.
Learn moreGet in touch today to book your ecu repair at our Rutherglen workshop. Online booking or call us directly.
59 Southcroft Road, Rutherglen, Glasgow G73 1SP · Mon–Fri 9:00am–5:00pm, Sat 10am–3pm
