🚨 Emergency? Call 999 · Motorway breakdown? 0300 123 5000
Search
LIVE
Loading incidents...

Start typing to search

Find traffic updates, service providers, tools & more

Mobile car diagnostics near you

Dashboard warning light on? Find mobile diagnostics technicians who come to you to find the fault, and often fix it on the spot.

Comes to you Garage or workshop
  • 100+ towns and cities
  • Free to request
  • No fee to compare

Featured and top-rated diagnostics technicians

Search your postcode to see the nearest first.

650+ listed across the UK See all
See all 650+ diagnostics technicians Top spot is openNo one has the featured place for vehicle diagnostics yet. See plans ›

What car diagnostics cost

Typical UK prices, as a guide. Checked October 2026. Each firm sets its own prices – ask for a quote before work starts.

JobTypical cost
Basic Fault Code ReadCodes + clear + advice£30 – £50
Full Diagnostic SessionAll systems, live data£60 – £120
Electrical Fault TracingPer hour, complex wiring£80 – £150
Pre-Purchase CheckFull mechanical + electronic£100 – £180
DPF Diagnostics & RegenForced regeneration if viable£60 – £100
ECU ProgrammingModule coding & setup£80 – £200

Prices vary by area and vehicle. Find local firms and ask for a quote

The short answer

A mobile diagnostics technician comes to you, reads the fault codes behind a warning light and tells you what needs fixing – often fixing it there and then. A basic fault code read typically costs £30–£50 and a full diagnostic session £60–£120. A red warning light means stop as soon as it is safe.

  • Free to search and free to request help – no obligation.
  • Look for “Insurance checked” on a listing, and agree the price before work starts.
  • Firms listed in 100+ UK towns and cities.

What’s covered

Engine Management DiagnosticsFault codes, live data analysis
ABS & Braking System ScanBrake warning light investigation
Airbag & SRS DiagnosticsSafety system fault finding
Transmission DiagnosticsAuto & manual gearbox issues
DPF & Emissions DiagnosticsDiesel particulate filter checks
Electrical System TestingWiring, sensors & modules
Pre-Purchase InspectionFull check before you buy
ECU Coding & ProgrammingModule setup & configuration

Questions drivers ask

What does a diagnostic check involve?

A technician plugs professional diagnostic equipment into your car's OBD port, reads all stored fault codes, checks live data from sensors, and provides a detailed report with recommended fixes.

Is it worth getting a diagnostic before buying a used car?

Absolutely — a pre-purchase diagnostic can reveal hidden issues like pending engine faults, airbag problems, or mileage discrepancies that aren't visible on a test drive.

Can you clear my warning light?

Yes, but clearing the light without fixing the underlying fault means it'll come back. A proper diagnostic identifies the root cause so it can be fixed permanently.

What's the difference between a code reader and full diagnostics?

A basic code reader shows fault codes. Full diagnostics includes live data, freeze frame analysis, component testing, and can access all vehicle systems — not just the engine.

Can mobile diagnostics fix the problem too?

Many issues can be fixed on-site — sensor replacements, wiring repairs, software updates. If workshop work is needed, your technician will explain what's required.

Do you cover my car make?

Most diagnostic providers cover all major makes. Some specialise in specific brands (BMW, Mercedes, VAG). Check the provider's profile for their coverage.

Vehicle Diagnostics by town and city

London Birmingham Manchester Leeds Glasgow Liverpool Edinburgh Bristol Cardiff Newcastle Sheffield Nottingham Leicester Coventry Belfast Dublin Bradford Southampton Brighton Swansea Durham
Rather not ring round?Send one free request and we pass it to the firms covering your area. No fee, no obligation. Request

More help for drivers

Do you do diagnostics?

Get found by drivers on this page. Free to list – no card needed. We post daily incident clips to 39,000+ followers across TikTok, YouTube, Instagram and Facebook.

List your business See plans

Firms supply their own details. We do not endorse or guarantee any firm – agree the price and cover before work begins.

Get quotes