ONYX AUTOCENTRE
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★★★★★ 5-Star Google Rated · Since 2019

Book a car service inSlough.

Fastest way: WhatsApp your reg and we'll send a fixed quote inside the hour. Or call 01753 439115. No nonsense. No hidden prices. Book in today.

⭐⭐⭐⭐⭐ 4.9 out of 5 from 500+ Google reviews. Trusted by drivers across Slough since 2019

  • 6 months interest-free, up to £3,000
  • Same-day slots available in Slough
  • VAG & BMW main dealer diagnostic tools

Get a quick quote

We'll WhatsApp you back. Usually within minutes.

How should we get back to you?How should we get back to you?
Interim Service
Quote on WhatsApp

Oil + filter, safety check

Full Service
Quote on WhatsApp

All filters, fluids, plugs

Major Service
Quote on WhatsApp

Full + cambelt / coolant

All our services

Every service we offer at our Slough workshop. Tap a tile to find out more.

Customer Reviews

What Our Customers Say

Rated 5 Stars on Google by drivers across Slough and Berkshire

★★★★★
2 months ago

"Took my BMW here for an oil change and oil filter and the service was spot on. Really friendly team, got the car booked in quickly and the job was done properly with no hassle."

CS · Google Review
★★★★★
1 month ago

"Highly recommend this garage. After contacting a few other garages who didn't want to take my car in for diagnostics, these guys were happy to help. They diagnosed and fixed an engine fuel leak issue professionally and efficiently. Great service and very reliable. I'll definitely use them again."

Sandesh Jacob · Google Review
★★★★★
5 months ago

"Very nice experience at Onyx — they took me in immediately and completed the DRL module swap efficiently. I have no regrets and would highly recommend."

Rehan Kazi · Google Review
★★★★★
5 months ago

"I brought my car to Onyx after visiting many other mechanics who failed to sort out issues with my vehicle. The mechanics here clearly explained the issues with the vehicle and fixed them quickly. Amazing service and wonderful people, highly recommend."

Shearyaar Hussain · Google Review
★★★★★
3 months ago

"These guys are always polite and welcoming. I've taken multiple vehicles here and the service received has been excellent."

Kelly Tanner · Google Review
★★★★★
6 months ago

"Had the front pads done here over the weekend. Second time in with Onyx and service has been top notch both times. On time, no hassle and cost effective. Highly recommend."

Mark Crofton · Google Review
★★★★★
10 months ago

"Max and Ben are extremely professional and did an excellent repair on my wife's car at a great price. Max spotted the problem within 6 hours, which 2 other garages could not detect."

Ameer · Google Review
★★★★★
6 months ago

"I took my car to Onyx and met Ben who was friendly and I got the problem diagnosed by Ben which I had a faulty water pump. I was quoted a reasonable price and got it replaced. I was satisfied and would recommend Onyx."

Ali Asad · Google Review
★★★★★
2 months ago

"Great service, sorted out my alloy refurb at a good price and quick turnaround. Top service, highly recommend."

Raman · Google Review
★★★★★
1 year ago

"A great experience with Onyx who fitted a new clutch for my Fiat 500. Super quick, friendly and well priced. Would highly recommend."

Emma Hedley · Google Review
★★★★★
6 months ago

"Very friendly, no hassle effective service. Definitely recommend and will use when I need to get my alloy wheels refurbished."

Andrew Jackson · Google Review
★★★★★
9 months ago

"Brought my Audi S3 in for a coolant leak — the part was on back order but they managed to source one in a couple of days. Massive thanks to Ben."

Jays Dad · Google Review
★★★★★
1 year ago

"My vehicle went in for a brakes job and Ben and the team at Onyx Autocentre did an amazing job. Highly recommended."

Joanro Gomes · Google Review
Payment Assist

Spread the cost over 6 months, interest-free.

Big bill? Pay the first instalment when you book, then spread the rest across up to 5 more monthly instalments, interest-free. Available on jobs up to £3,000. No setup fees, no hidden interest. FCA-authorised through Payment Assist, soft credit check, decision in minutes.

Payment Assist - spread the cost of your repair over up to 6 months, interest-free.
  • Up to 6 months interest-free
  • Available on jobs up to £3,000
  • First payment at booking, rest split monthly
  • Soft credit check, decision in under 2 minutes
  • No setup fees, no hidden interest

Same-day slots are limited this week.

Call or WhatsApp now and get a service today. Slough, Langley, Colnbrook, Windsor, Maidenhead, Uxbridge and Gerrards Cross.

Serving: Slough · Langley · Colnbrook · Datchet · Horton · Wraysbury · Poyle · Windsor · Burnham · Taplow · Maidenhead · Gerrards Cross · Uxbridge · West Drayton · Hayes · Staines

Servicing. Frequently Asked Questions

What's included in an interim service?+
Oil and filter change, full multi-point safety check, fluid top-ups and a written report. OEM-approved parts on every car.
What's included in a full service?+
Everything in an interim plus air, fuel and cabin filters, plugs (petrol), brake fluid check, battery test and more. Manufacturer schedule followed.
Major service vs full service?+
A major adds cambelt or chain inspection, coolant, full brake fluid replacement and any manufacturer-required items at higher mileages.
How much does it cost?+
Depends on the car and service level. WhatsApp your reg and we'll come back with a fixed quote inside the hour.
How long will it take?+
Interim 1–1.5 hrs, full 2–3 hrs, major up to half a day. Most cars in and out the same day.
Will it stamp the service book?+
Yes. Physical book and digital service record where supported.
Does it affect my warranty?+
No. Block Exemption rules allow independent garages to service warranty cars with OEM-approved parts.
Do you do oil-only services?+
Yes. Oil and filter while you wait on most cars.
Can I pay monthly?+
Yes. Pay the first instalment at booking, then up to 5 more monthly, 6 in total, interest-free, no setup fees, up to £3,000 via Payment Assist.
How quickly can I book?+
Same-day in most cases. Call or WhatsApp before 11am for the best chance.
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