The car will tell you what is wrong. You need the right tool to listen.
A generic code reader gives you a number. PIWIS 4 gives you live values, guided fault finding, factory campaign data and the ability to code and calibrate what you have replaced. It is the same system the main dealer plugs in, and we keep it current.
Intermittent faults are the ones that cost owners money in guessed parts. We charge for diagnostic time and then fix the thing that is actually wrong.
- 01
You tell us what the car does
When it happens, how warm the engine is, what the weather was doing. Owners notice far more than a fault code shows, and it saves diagnostic time.
- 02
We read the whole car
Every control unit, not just the engine. Stored faults, freeze-frame data, campaign history and adaptation values.
- 03
We test rather than assume
Substitution, measurement and live data until the fault is proven. If a part turns out to be fine, it goes back on the car.
- 04
You get the reasoning
A plain description of what we found, what we would do, what it costs, and what we would leave for now — before any work starts.
Book a diagnostic.
Tell us the model and roughly what is on your mind. We will come back with a date, a price and how long we will need the car.
If you need a hire car after dropping your vehicle off, we have partnered with Enterprise — just ask when you book in and we will arrange it for you.
- Telephone
- 01280 701911
- 01280 701911
- info@jgcporsche.co.uk
- Workshop
- Unit 8b Boundary Road, Buckingham Road Industrial Estate
Brackley, Northamptonshire NN13 7ES
Ten minutes from Silverstone, twenty from Bicester - Hours
- Mon–Thu 08:30–17:00 · Fri 08:30–16:30
Appointment only — please do not arrive without a booking