Engineers for cars · Wantage & Oxfordshire

Got a code?
Call Code 13.

Mobile car diagnostics, coding and key programming across Wantage, Didcot, Abingdon and Oxford. Warning light on? Key lost? Module needs coding? We bring dealer-level tools to your driveway, find the real fault, and fix it or tell you straight what it needs.

UK

See prices

07473 13 13 13
SCAN · 3 CODES● LINK OK
P0301Cylinder 1 misfire detected
C1300Chassis control module fault
U0100Lost communication with engine ECU
B1600Key not programmed
› NEXT STEP: CALL 07473 13 13 13_

What we do

Diagnostics first. Guesswork never.

We don't fit parts until the light goes out. We read the data, test the circuit and prove the cause. You pay for what's actually wrong.

Guide prices

Clear prices, agreed before we start.

Starting prices. You get a fixed quote before anything is booked. Extra work is never done without your agreement.

Diagnostic visitScan, testing and written findingsfrom £60
Module codingPer module, most modelsfrom £60
Spare key programmedKey or remote supplied and programmedfrom £90
Minor serviceLabour, parts extrafrom £95
Brake pads and discsPer axle, labour, parts extrafrom £90
TravelFree within 10 miles of Wantage£0

Our standard

Our standard

  • Genuine OEM or OEM-quality parts only, fitted to manufacturer specification
  • Your car's condition recorded with photos before we start
  • No extra work without your agreement
  • Labour guaranteed for 3 months or 3,000 miles
  • Pay on completion by card, bank transfer or cash
  • Written invoice with every job

Parts

Your choice of parts. One standard of work.

Every quote states which parts we're fitting. You choose the option; we fit it to manufacturer specification either way.

Best quality

Genuine OEM

The original manufacturer's parts. The best quality available, end of. Backed by the manufacturer's warranty.

The benchmark
Lower cost

OEM-quality aftermarket

Parts from established aftermarket suppliers built to OEM specification, at a lower price. Stock items are collected the same day; others are ordered in and the job is booked once they arrive. Supplier warranty applies.

Same spec, lower price
Labour only

Your own parts

We fit parts you supply and charge labour only. There is no warranty on customer-supplied parts, and we are not responsible for faults caused by those parts. No exceptions.

Labour only

How it works

Four steps. No garage waiting room.

01 · REQUEST

Pick a day

Choose a date and time below and tell us what's going on.

02 · CONFIRM

We call you

We ring to talk through the fault, give you a price and confirm the slot.

03 · ON YOUR DRIVE

We come to you

At home or work. We check the car over, then get on with the job.

04 · DONE

Pay and go

You get an invoice with what we found and did. Pay on completion.

About us

Engineers for cars.
Not parts fitters.

Code 13 Diagnostics is a mobile diagnostics and coding service based in Wantage, run by engineers who are car enthusiasts first.

Everyday runabouts, modified builds, odd electrical gremlins and the faults other garages gave up on: we enjoy the quirky ones. Every job gets the same method. Test it, prove it, fix it.

Coding and programming is our specialism, alongside diagnostics, keys, servicing and brakes on all makes.

BUSINESSCode 13 Diagnostics
BASEDWantage, OX12
SPECIALISMCoding & programming
ALSODiagnostics, keys, servicing, brakes
METHODTest. Prove. Fix.
WELCOMECustom builds & quirky faults
PHONE07473 131313

Where we cover

Wantage and around.

Free travel within 10 miles of Wantage. Further out, we'll quote a small travel charge when we call.

WantageGroveDidcotAbingdonFaringdonSteventonLambournOxford

Questions

Mobile car diagnostics: your questions answered.

Do you come to me?

Yes. We work at your home or workplace across Wantage, Grove, Didcot, Abingdon, Faringdon, Steventon, Lambourn and Oxford. Travel is free within 10 miles of Wantage.

How much is a car diagnostic check?

A mobile diagnostic visit starts from £60. That covers a full scan, live data, testing to prove the fault, and a plain-English explanation of what's wrong and what it will cost to fix.

Can you program a spare or replacement car key?

Yes, from £90 including the key or remote for most cars. We check the V5C logbook and photo ID of the registered keeper before programming any key.

What is module coding and programming?

When a control module is replaced or a car needs a feature switched on or off, the module has to be coded or programmed to match the car. We do this on your driveway with dealer-level software, so you don't need to go to a main dealer.

What parts do you use?

Genuine OEM parts, or OEM-quality parts from established aftermarket suppliers at a lower price. You choose. We can also fit parts you supply, labour only, with no warranty on those parts.

Do I need to be there?

We meet you at the start to check the car over and agree the work, and at the end to hand the car back and take payment.

How do I pay?

On completion, by card, bank transfer or cash. You get a written invoice for every job.

Book online

Book in four steps.

Enter your reg and we'll pull up your car's details. Choose the work, pick a day, and we'll call you to confirm.

  1. 1 · YOUR CAR
  2. 2 · SERVICE
  3. 3 · DATE
  4. 4 · DETAILS
Your car
UK

Type your reg and we'll look up your car's details automatically.

Call 13 13 13