About Slick Autos
Independent. Dealer-equipped. Built by drivers.
Slick Autos is an independent garage in Slough, Berkshire — founded by people who got tired of watching everyday cars get botched diagnostics from garages that couldn’t read the codes properly. Mercedes-Benz lead specialism, dealer-level support for BMW, Audi, VW, Porsche and every other good brand on the road.
Built by the people who were tired of watching it done wrong.
Slick Autos started because we got tired of watching everyday cars get botched diagnostics from garages that couldn’t read the codes properly. Hatchbacks sent home with the wrong sensor fitted. Family estates on their third EGR in a year because nobody looked at the live data. Daily drivers condemned to a DPF replacement when a proper regen and a reprogrammed ECU would have sorted it.
The moment it crystallised came with a customer’s C63 AMG that had been through three garages in four weeks chasing an intermittent limp mode. Each one read the fault code, replaced the cheapest likely part, cleared the code, and sent the car away. It came back every time. When it finally landed on our bench, a proper XENTRY session with live logging found the real fault in under an hour — a failing boost pressure sensor with a drift pattern you could only catch under load. £120 part, one hour of labour, problem solved permanently. Same story we’d seen dozens of times on cheaper cars that nobody bothered to diagnose properly.
That was the argument for how the workshop should run. Whatever the badge on the bonnet — a C63, a Golf, a Focus, a Land Cruiser — invest in the tools the manufacturer uses, log the data, prove the cause, and fix it once. Performance tuning is something we also do, because we have the rolling road and the experience. But it’s not why the workshop exists. Diagnostic-led repair is.
We set up with one rule: the tools have to match the cars. That meant genuine Mercedes XENTRY, BMW ISTA, Porsche PIWIS and VW Group ODIS on day one — not aftermarket clones, not generic OBD readers. It’s the non-negotiable foundation of everything we do, and it’s the single biggest reason we can fix the faults that have defeated other workshops.
“Fix it once. Fix it right. Whatever the badge.”
Diagnose first. Quote second. Fix once.
Every car that comes in gets a proper diagnostic scan before we touch anything. We log live data where the fault demands it. We read the control modules the manufacturer uses, with the software the manufacturer uses. Then we give you a written report and a fixed-price quote.
Only after you’ve seen that quote and agreed to it do we start work. There are no surprises on the final bill, no “we found a few other bits while we were in there”, and no guesswork parts fitted in hope.
We don’t do everything — and we’re clear about what we don’t do. We don’t delete DPFs or EGR valves on road cars. We don’t fit cheap pattern sensors. We don’t flash blind files from an anonymous tuning server. If that’s what you’re looking for, we’re not the right garage and we’ll tell you that on the phone before you drive over.
Everyone else — enthusiasts, daily drivers, people who want their car looked after properly — welcome.
Inside the workshop.
Three shots of the space where every job gets done. Real tools, real lifts, real rolling road. Drop in if you want to see it first hand — we’re happy to show you around before you book.
Where every custom map is developed and verified under load with live data logging.
Genuine XENTRY, ISTA, PIWIS and ODIS stations — dealer-level tooling for every platform.
Full-height two-post lifts for proper service work, brake jobs and underbody inspection.
Main dealer, high street,
or specialist independent?
The honest answer depends on the job — but for specialist work on German performance platforms, here’s how we stack up.
Four values. No exceptions.
Precision
Every job is measured, logged and checked. Nothing leaves the workshop on a guess. If we're not sure, we don't ship it.
Transparency
Fixed quotes before work starts. Written reports. Photos of anything we find. You always know what's being done to your car and why.
Expertise
Decades of combined experience on German performance platforms. Dealer-level tools, dealer-level procedures, dealer-level results.
No shortcuts
We don't fit cheap parts. We don't flash blind files. We don't delete DPFs. If you want the cheapest option, we're not the right garage.
Equipment
The tools match
the cars.
Every specialist platform we work on has its own dealer-level toolchain in the workshop. This is the non-negotiable foundation of how we operate.
The people behind every job.
A small, focused team. One lead technician per discipline. You deal with the person actually doing the work on your car, not a service advisor reading notes off a screen.
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Lead on ECU calibration and rolling-road development. Two decades on German performance platforms.
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Electrical fault finding, XENTRY and ISTA expert. The person you want when a car has defeated three other garages.
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Runs scheduling, parts sourcing, customer communication. The reason your car is ready when promised.
Placeholder photos — real team portraits will replace these before launch.
Want to talk about your car?
Drop us a message or call the workshop. We’ll give you a straight answer — even if the answer is “you don’t need that.”