Car Diagnostics | Book a Car Diagnostic for your Dacia

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a car diagnostic?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick for your Dacia

Our top pick

RAC Mobile Mechanic for your Dacia

At the RAC, we’ve got over 125 years’ experience in offering complete peace of mind to our members. We’re best known for our breakdown service. And now – our new RAC Mobile Mechanics are here to help make every day motoring easier. If you need a service or repair, they’ll come to you at your home or work.

A customer tending to her garage with an RAC Mobile Mechanic in the background

Book a car diagnostic

Our mobile mechanics will spend up to 30 minutes checking your car for faults and talk you through any repairs you might need and give you a report for your records. There are various ways we can check for faults, which could include plugging in to check your car’s onboard engine management system.

OEM quality parts

We use original equipment manufacturer (OEM) standard parts, which means every new part will be the same standard and same quality as the original part it replaced.

Mechanics you can trust

Our mobile mechanics are friendly, honest, and backed by the RAC.

Close up of an RAC Mobile Mechanic running a vehicle diagnostic check

Book a repair

It’s easy to book a car repair online. We bring the garage to you with RAC Mobile Mechanics, or find a trusted local garage. Common repair jobs include:

Clutch Replacement

We diagnose and repair clutch issues – whether your clutch is heavy or slipping, or you’re having trouble changing gears.

Alternator repair

We check and correct alternator faults to keep your charging system running smoothly.

Oil change

Oil is vital to a healthy engine, so it’s important to change it regularly.

Brake pads & Discs

If your brakes are making noise or you’re noticing reduced stopping power, it’s likely time to replace your brake pads or discs.

And it’s not just car diagnostics that we do for your Dacia

Mobile mechanics bring the garage to you, saving you the hassle of getting your car to a garage. If you need a service or repair, they’ll come to you at your home or work.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

View all garages

Master MOT and Service Centre

4.0/5

We offer car and van Mot service six days a week from 9 am to 6pm.we offer car servicing brakes exhausts diagnostics Tyres replacement free pre mot checks

Unit3 Woodland Mill Hazelbottom Road M8 0Gq, Behind To Express Car Wash, Manchester, M80GQ

Freelance Mechanics

4.3/5

In 2009 I started Freelance Mechanics Ltd, not quite knowing how it would pan out, but im glad to say we have gone from strength to strength.Going from me and my van traveling round helping garages when short staffed to now owning my own garage, where over the last 3 years i have invested heavily in training because although I'm NVQ level 3 trained,cars have moved on massively since staring in the trade 24 years ago.We are specialist in the following. 1) IMI (institute of motor industry) approved in clutch,flywheel and hydraulic systems. 2)DPF (diesel particulate filter) and add blue systems. Hybrid systems level 2 and 3. 3)Double clutch systems ie VAG groups DSG box (the only one in the area to be trained in this qualification. 4)Level 3 trained in brake systems. 5)We are specialist in gearbox repairs and we are also the areas only ZF pro tech centre,with on site support from ZF. 6)We are also mapping agents for bhp uk ,giving us exclusive rights to the area. 7)Terraclean service centre a unique de-carbonising system that can clean DPF filters as well as EGR (exhaust gas recurculating )valves. 8)We are members of the motor codes of practice and have just been inspected by the AA and passed with flying colours. 9)we offer a collection and delivery service to all customers and have 2 brand new courtesy cars on order so if your looking for a garage to fit anything from a from a bulb to an engine rebuild we are more than glad to help. For a limited time only we have 500 10% loyalty cards available please call

Unit 3D Park Rd Ind Eestate, Park Road Industrial Estate, Barrow-In-Furness, LA14 4EQ

Active Tyres,Servicing & MOT

4.7/5

We're open 6-days-a-week: Monday - Friday : 8.30am - 6pm Saturdays: 8:30am - 5pm Sundays: CLOSED We are, above all, local people in local garages. Our commitment to quality services stems from the simple foundation that we’re members of communities that we care about. We’re all about honest MOT tests and vehicle services at honest prices. We're the leading fast-fit supplier of tyres in the country and carry stocks of over 600,000 products from leading manufacturers including Pirelli, Goodyear, Michelin, Continental and Dunlop

216 Bellingdon Road, Chesham, HP52NN

PJ Automotive Ltd

4.8/5

We are an RAC Approved Garage carrying out work on all types of vehicles including commercial vehicles to 5 ton. We can MOT class 4, 5 and 7 vehicles. We specialise in German brand vehicles (BMW, Mini, Audi, Mercedes). We can however carry out work on any make.

Mount Pleasant, Hanley, Stoke On Trent, ST14AY

Auto-Line MOT Centre

5.0/5

Here at Auto-Line M O T we offer high quality servicing and mechanical repairs. We carry out any repairs to industry standard service manual labor times. We also offer a free collection and delivery service and vehicle movement services, which are subject to availability. We are a small close-knit team of two technicians with over 30 years of experience between us. We have a real passion for what we do and carry out every single job, no matter how big or small, to the highest standards. Owner Oliver is fully licensed, insured and qualified in the following; DVSA registered Authorised Examiner and mot tester Automotive Refrigerant Handling (EC Level 3 Award (IMI Awards Ltd) Light Vehicle Maintenance and Repair Competence, Level 3 Diploma (IMI Awards Ltd) Light Vehicle Maintenance and Repair Principles, Level 2 Diploma (IMI Awards Ltd). Numerous product courses with Ford Numerous product course with jaguar land rover Numerous product courses with BMW Luke is a landrover master technician Very experienced with all makes and models as comes from and aftermarket background. Light Vehicle Maintenance and Repair Competence, Level 3 Diploma (IMI Awards Ltd)

Unit 17 British Waterways Yard, Shardlow, Derby, DE722HL

Frequently asked questions on car diagnostics

How much does it cost to diagnose a car problem?

The cost you pay can vary depending on the type of car and how complicated the diagnostic test. Check with your mechanic for a quote.

Is a car diagnostic test worth it?

Yes, a diagnostic test may save you a lot of money. It finds issues early before they become costly repairs. It can also keep your vehicle running efficiently and safely

Can I do a car diagnostic myself?

While you can buy a diagnostic tool, interpreting the results needs expertise. It’s best if you to have a professional mechanic perform the test.

How long does a car diagnostic test take?

Diagnostic tests take from 30 minutes to a few hours. This depends on what issues are being looked at.

What are common car diagnostic codes?

Common diagnostic trouble codes include:

P0300: Random/Multiple Cylinder Misfire Detected
P0420: Catalyst System Efficiency Below Threshold
P0171: System Too Lean (Bank 1)

These are general examples, so your car may have different codes. Always check with a mechanic so you get an accurate diagnosis.

Is a car diagnostic test necessary for a service?

Yes, they are. Regular diagnostics can help keep your car in good health. It makes sure that underlying issues are addressed quickly, so you can drive with peace of mind on the road.

Again, keep in mind that mechanics might have their own checklists. Chat with your mechanic to be sure that they address any specific issues you have.