How much does an MOT test cost at Doyen Auto Services?

A Class 4 MOT (cars and light vans) costs from £45. A Class 7 MOT (vehicles up to 3,500kg) costs from £58. We offer free re-tests within 10 working days if your vehicle fails.

Do you offer ECU remapping in Glasgow?

Yes, we offer professional ECU remapping from our workshop in Rutherglen, Glasgow. This includes Stage 1 and Stage 2 performance remaps, economy tuning for better fuel efficiency, and custom mapping for modified vehicles. Prices start from £199.

What are your opening hours?

We are open Monday to Friday 9:00am to 5:00pm, and Saturday 10:00am to 3:00pm. We are closed on Sundays. You can book online 24/7 through our website.

Where is Doyen Auto Services located?

We are located at 59 Southcroft Road, Rutherglen, Glasgow G73 1UG. We are easily accessible from Glasgow city centre, Cambuslang, Hamilton, East Kilbride, and surrounding areas.

Can I book an appointment online?

Yes, you can book an appointment online through our website at doyenautos.co.uk/book-online. Simply enter your registration, choose your service, pick a date and time, and we will confirm your booking within 1 hour.

What car diagnostic services do you offer?

We offer comprehensive dealer-level diagnostics including engine management fault finding, ABS and traction control diagnostics, transmission fault code reading, and live data analysis. Our diagnostic equipment covers all makes and models.

Specialist Service

Carbon Cleaning Glasgow

Restore lost performance and fuel economy by removing carbon deposits from your engine. Professional carbon cleaning for all vehicles.

Book This Service 0141 483 0726

Carbon Cleaning (Engine)

From

£90

Final price depends on vehicle & condition

Estimated 1.5 hrs

Professional equipment & trained technicians
All work fully guaranteed
No hidden fees — clear pricing upfront
While-you-wait where possible

Book Now

Prices shown are starting prices. Final cost depends on your vehicle's make, model, and condition. We always provide a free estimate before starting work.

What is Carbon Cleaning (Engine)?

Over time, carbon deposits build up inside your engine — on the intake valves, inside the combustion chambers, in the intake manifold, on turbo components, and in the exhaust system. This carbon build-up restricts airflow, reduces combustion efficiency, and gradually robs your engine of power and fuel economy. It can also cause rough running, misfires, and increased emissions.

Carbon cleaning at Doyen Auto Services in Rutherglen is a professional service that removes these deposits and restores your engine closer to its original condition. We use proven cleaning methods appropriate to the severity of the build-up and the type of engine.

This service is particularly beneficial for vehicles that do a lot of short journeys or city driving, where the engine rarely gets hot enough to burn off deposits naturally. Direct injection petrol engines are especially prone to intake valve carbon build-up because, unlike port injection engines, fuel doesn't wash over the intake valves to keep them clean.

Pricing

Case-by-case pricing. The figures below are starting “from” prices — your final quote depends on your vehicle's make, model, and condition.

Hydrogen Carbon Clean

From£90

We always provide a free, no-obligation quote before any work begins. Call 0141 483 0726 or WhatsApp 07760 926245.

Key Benefits

Restores lost engine power and throttle response

Improves fuel economy by restoring combustion efficiency

Reduces rough idle and hesitation

Can help pass MOT emissions testing

Extends the life of engine components like turbo and EGR

Suitable for both diesel and petrol engines

Our Process

Here’s what to expect when you bring your vehicle to Doyen Auto Services

Engine Assessment

We check the level of carbon build-up using diagnostic tools and visual inspection where possible.

Carbon Cleaning

The appropriate cleaning method is used to dissolve and remove carbon deposits from the affected areas.

Post-Clean Inspection

We verify the cleaning has been effective and check for any issues revealed by the cleaning process.

Test Drive

A road test confirms improved performance and smooth running.

Why Choose Doyen Auto Services?

We’re a specialist automotive garage in Rutherglen, Glasgow, with the equipment, experience, and honest approach to get the job done right first time.

We assess the level of carbon build-up and recommend the appropriate cleaning method

Not a one-size-fits-all service — we tailor the approach to your engine type and condition

Before-and-after inspection so you can see what's been achieved

Competitive prices at our Rutherglen workshop for customers across Glasgow

Frequently Asked Questions

Common questions about this service at Doyen Auto Services

How do I know if my car needs a carbon clean?

Common signs include reduced power, poor fuel economy, rough idle, hesitation when accelerating, and higher-than-normal emissions. If your vehicle has done over 50,000 miles and does mostly short journeys, there's a good chance it would benefit from a carbon clean.

How much does a carbon clean cost in Glasgow?

Carbon cleaning at our Rutherglen workshop starts from around £100-£150 for a standard service. More intensive cleaning for heavily clogged engines may cost more. We'll assess the situation and give you a clear quote before starting.

Will a carbon clean help my car pass the MOT emissions test?

It can help, yes. Carbon build-up increases emissions, and a thorough clean can bring emissions levels back down to within MOT limits. We've had customers bring in vehicles that have failed on emissions, done a carbon clean, and passed the retest.

How often should I get a carbon clean done?

There's no set interval, but every 30,000-50,000 miles is a sensible guideline, especially for vehicles that do predominantly short journeys. If you notice any of the symptoms — reduced power, rough idle, poor economy — it's worth having it checked.

Is carbon cleaning suitable for petrol engines too?

59 Southcroft Road, Rutherglen, Glasgow G73 1UG · Mon–Fri 9:00am–5:00pm, Sat 10am–3pm