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MotorSector Streatham · Streatham, SW16 5LU

Car diagnostics and fault finding in Streatham

Technician-led diagnostic fault investigation from MotorSector Streatham. We combine fault-code and live-data analysis with hands-on testing — not a cheap code scan — then explain findings before any repair begins.

Diagnostic fault investigation from £100 plus VAT

Send a Diagnostic Enquiry→Call 020 3981 1781
Technician running electronic car diagnostics with a laptop and multimeter
DiagnosticsFrom £100 plus VAT

Technician-led fault investigation with clear findings before any repair work begins.

What we investigate

Diagnostics at MotorSector are a technician-led fault investigation — not a low-cost code scan.

  • Warning lights and engine-management faults
  • Running faults, misfires and loss of power
  • Starting, charging and battery-related issues
  • ABS, airbag and related system investigation
  • Intermittent electrical and drivability problems
  • Live-data analysis and component testing where relevant

Signs it is time to book

  • Engine-management, ABS, airbag or battery light is illuminated
  • Poor starting, rough idle, misfire or loss of power
  • Intermittent electrical behaviour
  • Unexpected fuel use or emissions-system warning
  • The vehicle has entered reduced-power or limp mode

What is included

The initial diagnostic fault investigation includes up to one hour of technician testing, fault-code and live-data analysis where relevant, a personalised inspection video and copies of applicable diagnostic reports.

  • Up to one hour of technician testing
  • Fault-code and live-data analysis where relevant
  • A personalised inspection video
  • Copies of applicable diagnostic reports

If further testing time is required, we will explain the next stage and obtain your approval before continuing.

What is not included

  • Diagnostic payment covers investigation time — it is not a repair quote or a parts deposit
  • It does not guarantee that every intermittent or complex fault will be conclusively identified within the initial hour
  • Repairs and parts are quoted separately after findings are explained
  • Fault-code reading alone does not identify a failed component
  • Customers cannot normally wait onsite during diagnostic investigations

Diagnostic repair discount

When the diagnosed repair is subsequently authorised and completed by MotorSector, a 50% diagnostic discount may be applied to the final repair invoice.

See the precise conditions in our Terms and Conditions.

Send a diagnostic enquiry

Share the registration, symptoms and media so we can prepare the investigation. Prefer to speak to someone? Call 020 3981 1781.

Diagnostic enquiry

Tell us about the fault so we can prepare the right technician-led investigation. Or call 020 3981 1781. Uploads are kept only as long as needed — see our Privacy Policy.

Registration number *
Does the vehicle start? *
Warning lights? *
Loss of power? *
Noise or smell? *
Is the fault intermittent? *
Previous repairs or diagnostic work? *
Vehicle modifications? *
When did the issue begin? *

Diagnostics trust marks

IMI technical qualifications support technician-led fault investigation. Click the mark for a short explanation.

IMI

Technical work is supported by IMI-qualified capability. The Institute of the Motor Industry sets professional standards for automotive technicians and workshop competence.

Learn more

Frequently asked questions

Related services

Ready for a diagnostic investigation?

Send an enquiry, book online, or call 020 3981 1781.

Send a Diagnostic Enquiry→Call 020 3981 1781