Diagnostics · Fault finding, coding · London
Diagnostics and coding in London, found and explained.
Platinum Tune does diagnostics and coding: for a warning light, a fault you can't pin down, or a new part or factory feature that needs coding, at Unit 11 Wembley, or at your home or work anywhere in London.

- Wembley Park Business Centre, HA9 0AS. A workshop you can visit.
- At your home or work, anywhere in London.
- We read the fault memory of the car's control units.
- We tell you what we found before any work starts.
What it is
What do diagnostics and coding cover?
Fault finding. When a warning light comes on or the car isn't running right, we scan its control units, read what the faults mean and check the likely causes on the car. Then we tell you what we found and what it needs.
Coding. Setting up a new part so the car recognises it, such as new injectors or tyre pressure sensors, and switching on features your car already has the hardware for. Tell us what you'd like coded and we'll check your car supports it.
Fault finding and coding only: we find the cause of a fault and put it right, or tell you what it needs.
Is it right for my car?
A good fit if
- A warning light is on, or the car feels different and you don't know why.
- A new part has been fitted and needs coding to the car.
- You'd like a factory feature switched on that your car has the hardware for.
Not the right job if
- You want a feature the car doesn't have the parts for: coding can't add hardware that isn't there.
On the day
How does fault finding work?
At Unit 11, Wembley Park Business Centre, or at your home or work: we find the cause first and agree any work with you before we start it.
Step 1: Tell us what's wrong
Send your reg and what the car is doing, or what you'd like coded.
Step 2: Scan the car
We read the fault memory of the car's control units.
Step 3: Find the cause
We look at what the faults mean and check the likely causes on the car.
Step 4: Agree the work
We tell you what we found and quote for any work before we start it.
Step 5: Fix, code and check
We do the work we agreed and check the car before we hand it back.
At our workshop
At Unit 11
Unit 11, Wembley Park Business Centre, North End Road, Wembley HA9 0AS. Bring the car in and we tell you how long it will take when we quote.
Mobile remapping
At your door
We bring the bench to your home or work, anywhere in London: the same tools and the same checks as at the unit. Send your postcode and we'll confirm.
The honest bit
Good to know before you book.
If it needs a repair
If the cause is something we fix, we quote for it before we start. If it needs a repair we don't do, we tell you what we found, so your own garage can put it right.
Thinking about a remap?
We check every car before we tune it. If a fault turns up, we sort that out with you first, then quote for the remap.
Your quote
What affects the price of diagnostics and coding?
No two quotes are the same, because no two cars are.
- Your car
- The fault, or what you'd like coded
- The control units involved
- Any work needed once we know the cause
What do our customers say?
From our Google reviews: our remapping customers, with the month of each review.
Very responsive and professional, identified the issue straight away, and fixed it efficiently. Clear pricing and no fuss. Would definitely recommend and use again.
Amazing service provided by this company. all work was explained and actioned as agreed. Would reccomend.. 5 star service *****
Questions
Questions about diagnostics and coding.
Straight answers, including why there's no price on this page.
Something else? Ask us on WhatsApp
How much is a diagnostic check?
There's no fixed price: we quote for your car, because the price is set by your car, the fault, or what you'd like coded and the control units involved. Every car is different, so we don't publish prices. Send us your reg on WhatsApp and we'll quote for your car.
A warning light is on. Can you find out why?
Yes. We scan the car, look at what the fault means and check the likely causes. Then we tell you what we found and what it needs, before any work is done.
What is coding?
Coding changes settings in the car's control units. It sets up a new part so the car recognises it, such as new injectors or tyre pressure sensors, or switches on a feature the car already has the hardware for.
Will you fix the fault as well?
If it's work we do, we quote for it before we start. If it needs a repair we don't do, we tell you what we found so your garage can fix it.
Do I need a remapped car?
No. Diagnostics and coding are for any car, tuned or standard.
Can you do diagnostics and coding at my home or work?
Yes. We come to your home or work anywhere in London, as we do for mobile remapping, with the same tools and the same checks as at Unit 11. Send your reg and postcode on WhatsApp and we'll confirm a time. Or bring the car to us at Unit 11, Wembley Park Business Centre, Wembley.
How long does it take?
We tell you how long it will take when we quote, so you can plan your day: it depends on the car and the work. Some faults take longer to trace than others.
Unit 11 or mobile remapping
Other work we do.
Each job quoted for your car on WhatsApp. See all our remapping services, or our page on ECU remapping in London.
Standard car · Calibration · More power and torque
Stage 1 remap
More power and torque on a standard car, with no new parts.
Supporting hardware · Matched file · Checked first
Stage 2 remap
For cars with supporting hardware fitted. We check your parts first.
DSG · ZF 8HP · S tronic
Gearbox & DSG
Quicker, cleaner shifts, set up for the engine's torque.
Economy · Drivability · Vans and fleets
Vans & fleet
Easier pulling when loaded, set up for economy and drivability.
Fuel use · Smooth delivery · Everyday driving
Economy remap
Steady torque and easy cruising, for people who cover miles.
Factory settings · Selling the car · Original software
Back to stock
Selling the car? We put your original software back.
Last updated
Get your quote
Your reg is all we need to start.
Send it on WhatsApp and a tuner replies with a real quote for diagnostics and coding.
- Unit 11, Wembley Park Business Centre, North End Road, Wembley HA9 0AS
- Directions
- Call +44 7777 370040
- Book mobile remapping
Tuning cars for your own customers? Apply for a dealer account
