Starter Motor Diagnostics & Replacement in Sunbury-on-Thames
A click with no crank, or a slow, laboured start, can be the starter motor — or the battery, cables or immobiliser. We test the whole starting circuit first.
If the car won’t start at all, we can arrange collection or recovery.
Common signs
Symptoms worth checking
- Click but no crank
- Slow cranking
- Intermittent no-start
- Grinding on starting
Battery or starter?
Voltage drop tests across the battery, cables and starter tell us where the problem lies. Starters can fail intermittently as brushes or solenoid contacts wear.
Stop-start vehicles use heavy-duty starters that work much harder.
What we check
- Battery condition
- Voltage drop on cables
- Solenoid and starter
- Immobiliser and start signal
What we can do
- Starter motor replacement
- Cable and ground repairs
How it works
The process
- 01
Test the circuit.
- 02
Confirm starter fault.
- 03
Replace.
- 04
Verify.
Why The Factory
Main-dealer capability, independent service
A Master Technician-led workshop with seven mechanical ramps, a dedicated MOT ramp and dealer-level diagnostics. Faults are shown to you and additional work is quoted before it goes ahead.
We stand behind the work we carry out. Parts and workmanship are covered in accordance with your statutory rights and any applicable manufacturer or supplier warranty. Please ask us for details relevant to your repair.
- Electrical diagnostics
Free local collection & return
Available by arrangement within approximately five miles of our Sunbury-on-Thames workshop. Further afield? Just ask us.
FAQs
Starter Motor Repairs: your questions answered
Why does my car click but not start?
Low battery voltage, poor connections or a failing starter solenoid.
How do I know if the starter motor or battery is the problem?
We test battery health and voltage drop to identify which.
Can starter motors fail intermittently?
Yes, often before failing completely.
What causes slow cranking?
A weak battery, poor connections or a worn starter.
Can you test the starting circuit before replacing parts?
Yes — always.
Related services
Battery Replacement
12V battery testing, replacement and registration where required.
Alternator Repairs
Charging system testing and alternator replacement.
24/7 Vehicle Recovery
24/7 UK-wide recovery arranged through our recovery partner.
Need help with starter motor repairs?
Send your registration and a quick description on WhatsApp, or call the workshop.
The Factory, Harris Way, Sunbury-on-Thames TW16 7EL