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UK's Automatic Gearbox Repair Specialists

20,000+ rebuilds, manufacturer-approved parts, 12-month guarantee - nationwide collection & delivery

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0808 164 0418
8am - 5.30pm Mon-Fri
18 Years Experience
20,000+ Gearbox Rebuilds
12-Month Guarantee Parts & Labour
All Transmission Types Manual, Auto, CVT, DSG & More
Bespoke Collection & Delivery With all repairs over £1,500

Warranty & Compliance Approved


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Gearbox repair specialist
Automatic Gearbox & Transmissions

We are the UK's Gearbox & Transmission Repair Specialist

Guaranteed protection on your manufacturer's warranty with over 18 Years of experience 

Here at Service4Service we are the UK's trusted gearbox repair and transmission specialist.
With over 18 years of experience and more than 20,000+ successful gearbox rebuilds, we have the expertise to handle everything from a single fault repair to a complex automatic transmission rebuild.

Whether you are dealing with slipping gears, a transmission warning light, noisy shifting or a complete loss of drive, our specialist technicians diagnose and fix the problem right first time.

We cover all transmission types and all major vehicle makes. Every repair uses manufacturer warranty-approved parts and comes with a 12-month/12,000-mile guarantee on parts and labour.

  • Automatic Gearbox and Transmission Repair
  • CVT, DSG, Dual-Clutch & Mechatronic Transmission Services
  • Hybrid Gearbox Diagnostics & Repairs
  • Valve Body & Solenoid Fault Repairs
  • Gearbox Rebuilds, Reconditioning & Replacement
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Gearbox & Transmission Repairs for All Major Manufacturers

Gearboxes can develop problems over time including worn gears, fluid leaks and damaged synchromeshes. The good news is that many faults are straightforward to fix when caught early. If your car is slipping gears, making unusual noises or slow to respond, our specialist technicians can diagnose and repair the problem quickly.

Automatic Gearbox Diagnostics & Repair

We diagnose and repair gear selection issues, slipping, grinding noises and delayed engagement across all automatic transmissions.

CVT, DSG & Dual-Clutch

Our specialists are experienced in modern transmission systems including CVT, DSG and dual-clutch gearboxes across all major manufacturers.

Mechatronic Units

We repair and replace mechatronic units, resolving hesitation, harsh shifting, warning lights and electronic control faults.

Valve Body & Solenoids

Targeted diagnostics and component-level repairs to restore correct hydraulic pressure and smooth gear operation.

Gearbox Rebuilds, Reconditioning & Replacement

Where repair isn't cost-effective, we carry out full gearbox rebuilds, reconditioning and replacement using manufacturer-approved parts- with a clear quote before any work begins.

Hybrid Transmissions

Detailed diagnostics and repairs on hybrid gearboxes, addressing electric motor integration faults while maintaining manufacturer standards.

All repairs use OEM or manufacturer warranty-approved parts and come with a 12-month guarantee.

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All Major Manufacturers We Repair

We repair automatic gearboxes for every major manufacturer, from mainstream models to prestige vehicles. Select your manufacturer below for model-specific guidance on common faults, repair options and what to expect from the process.

Audi BMW Citroen Ford Honda Hyundai Land Rover Lexus Mercedes Mini Nissan Peugeot Renault SEAT Skoda Toyota Vauxhall Volkswagen Volvo Aston Martin Bentley Cupra Dacia Kia Mitsubishi Alfa Romeo Chrysler Fiat Jaguar Jeep Maserati Mazda MG Porsche Suzuki

Gearbox Diagnostics

A gearbox rarely fails without warning. Slipping gears, delayed engagement, grinding noises, limp mode and transmission warning lights are all signs that something needs attention. The sooner a fault is identified, the lower the repair cost is likely to be.

Our technicians use the latest specialist diagnostic equipment to find the root cause of any gearbox fault quickly and accurately. Every diagnostic includes a transmission fluid check, live gear shift analysis, fault code reading and a full sensor and solenoid assessment giving us a clear picture of what is wrong before any repair work is recommended.

Whether your vehicle has an automatic, DSG, CVT or dual-clutch gearbox, we carry out a full diagnostic on every job. We never recommend repairs without first identifying the fault.

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Gearbox Rebuild, Reconditioning & Replacement Specialists

A gearbox rebuild is the right solution when internal damage is too widespread for a targeted repair. Rather than replacing the whole unit, our technicians strip the gearbox down completely, inspect every component and replace anything that is worn or damaged returning it to a reliable, fully functioning condition at a fraction of the cost of a new unit.

Every rebuild at Service4Service follows a structured process:

  • Diagnosis - full diagnostic to confirm a rebuild is the correct course of action
  • Disassembly - complete strip down of the gearbox unit
  • Inspection - every component checked against manufacturer tolerances
  • Parts replaced - worn gears, bearings, seals and clutch packs replaced with manufacturer-approved parts
  • Cleaning - all casings and retained components cleaned before reassembly
  • Reassembly - precise reassembly to manufacturer specification
  • Full testing - performance and pressure testing before the vehicle is returned

All gearbox rebuilds come with a 12-month guarantee*

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Gearbox Replacement

A gearbox replacement isn't always the first option - we always assess whether a repair or reconditioned unit could fix the fault first, since it's often the more cost-effective route. Where replacement genuinely is the right call, we fit manufacturer-approved units backed by our 12-month guarantee on parts and labour.

With 18 years' experience and over 20,000 completed gearbox rebuilds, we've helped thousands of drivers make the right decision on repair versus replacement - without pressure toward the more expensive option.

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DCT Gearboxes

Our team is fully trained and experienced in dual-clutch (DCT) gearbox repairs, servicing, replacement and rebuilding across all major manufacturers, including Ford Powershift, BMW, Porsche PDK and Audi S Tronic.

Every repair uses manufacturer warranty-approved parts for your extra peace of mind.

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Powershift Gearboxes

We're specialists in the Ford Powershift gearbox, commonly found in the Ford Fiesta and Ford Focus. Powershift faults often show as jerking, hesitation or a Powershift-specific warning light, and repairs include full diagnostics, clutch pack replacement and recalibration.

We use only manufacturer warranty-approved parts, giving you the same standard of repair as a main dealer without the dealer price tag.

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CVT Gearboxes

CVT gearboxes can develop faults such as shuddering, jerking, whining noises or a delay in acceleration, often linked to belt or pulley wear, clutch pack issues or transmission fluid problems - common on models like the Nissan Qashqai and Honda Jazz. With comprehensive diagnostics and manufacturer warranty-approved parts, we provide expert CVT repairs across all major manufacturers. Book your repair with our specialist technicians and get back on the road safely.

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DSG Gearboxes

Our technicians are experts in DSG gearboxes, offering specialist repairs across Volkswagen, Audi, SEAT and Skoda - including the VW Golf, VW Polo and Audi A4. This includes repair of the mechatronic unit, clutch pack replacement, and recalibration and reconfiguration following repair.

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Hybrid Transmissions

A faulty hybrid transmission can affect acceleration, fuel efficiency and overall drivability, often showing as jerking, unusual noises, or warning lights on the dashboard.

Our expert technicians diagnose and repair hybrid transmission faults across all major manufacturers, including Toyota, Lexus, Honda and Ford hybrid models, keeping your vehicle in optimum, reliable condition.

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Car being loaded onto a recovery vehicle for specialist gearbox diagnosis Collection & Diagnosis

Vehicle Recovery & Gearbox Diagnostics

Gearbox trouble and unable to bring the car to us? Our team can discuss collection or recovery from a convenient location in the UK, subject to availability. A specialist will assess the fault and explain the recommended repair before any additional work goes ahead.

  1. Tell us the symptomsShare your registration, location and what the gearbox is doing.
  2. Confirm the arrangementsWe will discuss the booking, collection options and next steps with you.
  3. Approve the workAfter diagnosis, we will explain any additional repair and seek your authorisation.

You stay in control. If diagnosis identifies additional work, we will call you before proceeding. No additional repair work is carried out without your authorisation.

From Enquiry to Return

How Our Car Repairs Work

Getting help with a gearbox fault should be straightforward. Here is what to expect from your first enquiry through diagnosis, approval and the return of your vehicle.

  1. Tell us what has happened

    Complete the repair enquiry form and await a call, or phone 0808 164 0418 to speak with an advisor.

  2. Discuss the likely fault

    Based on the symptoms you describe, we can discuss possible causes and an initial cost estimate. The fault and final repair cost can only be confirmed after inspection.

  3. Arrange collection and diagnosis

    We will discuss collection or recovery and arrange for the vehicle to be assessed at a specialist repair centre. Availability and arrangements are confirmed when you book.

  4. Receive the diagnostic findings

    Diagnostic reports are usually available within 2–3 days of collection, depending on the fault and workshop capacity. We will keep you updated if more time is needed.

  5. Approve the repair

    We explain the recommended work and confirmed costs before proceeding. If further work is identified, we will call you first; no additional repair is carried out without your authorisation.

  6. Get warranty claim help if needed

    If you have a relevant vehicle warranty, tell us at the start. We can help liaise with major warranty providers and assist with the claim where the policy and provider allow.

  7. Arrange payment and return

    Once the repair is complete and payment or an agreed finance arrangement is in place, we will arrange to return the vehicle as soon as practical.

  8. Keep your repair paperwork

    You will receive an invoice detailing the work completed and the applicable repair warranty, stated as 12 months or 12,000 miles.

Frequently Asked Questions

Understanding your vehicle's maintenance needs, and addressing issues promptly are key to maintaining your car's performance and reliability. If you have specific questions about your vehicle or a repair issue, don't hesitate to call Service4Service on 0808 164 0418 for guidance.

How much does a gearbox repair, rebuild or replacement cost?

The cost of a gearbox repair depends on the vehicle, the gearbox type, the fault, and whether a targeted repair, rebuild or replacement unit is needed. A targeted repair is usually the cheapest option, and a rebuild costs a fraction of a new gearbox. Service4Service runs a full diagnostic first and gives you a complete quote to approve before any work begins.

 

Is it better to rebuild or replace a gearbox?

Rebuilding is usually the better option when the gearbox casing and main components are sound. A gearbox rebuild, also called reconditioning or refurbishment, strips the gearbox down, replaces worn parts and tests it to manufacturer specification, at a fraction of the cost of a new unit. Replacement is only recommended when a repair or rebuild won't restore reliable performance.

How long does an automatic gearbox last?

Many automatic gearboxes last well over 100,000 miles, and some last the life of the car. Lifespan depends on the gearbox type, how the car is driven and whether the transmission fluid has been kept in good condition. Heavy towing, frequent short stop-start journeys and ignored warning signs all shorten it. 

What are the signs my automatic gearbox needs repair?

Common signs your automatic gearbox needs repair include slipping between gears, delayed engagement, jerky or harsh gear changes, whining or grinding noises, fluid leaks, a burning smell and a transmission warning light. Catching these early usually keeps the repair cost down, so book a diagnostic as soon as you notice them.

Why won't my automatic car go into gear?

An automatic car that won't go into gear usually has low or degraded transmission fluid, a faulty gear selector or cable, a failed solenoid or valve body, a transmission control unit fault, or a brake switch fault stopping the selector moving out of Park. A diagnostic will show which it is before any parts are replaced.

 

Why is my automatic gearbox whining or making a noise?

A whining automatic gearbox usually points to low or worn transmission fluid, a failing fluid pump, worn bearings, or wear in the torque converter or planetary gears. Grinding or clunking can mean more advanced internal wear. Gearbox noise is an early warning sign, so get it diagnosed before it becomes a bigger repair.

 

Why is my automatic gearbox slipping?

An automatic gearbox slips when it can't hold a gear, so the engine revs rise but the car doesn't accelerate as it should. Common causes are low or burnt transmission fluid, worn clutch packs or bands, faulty solenoids or valve body faults, and a failing torque converter. Slipping that's worse when the gearbox is hot usually points to worn fluid or internal wear.

 

Can I keep driving with a gearbox warning light on?

No. A gearbox warning light means the transmission control system has detected a fault, and continuing to drive risks turning a minor repair into a much bigger one. If the light is on or the car feels different to drive, have it checked as soon as possible. Service4Service can arrange collection or recovery, subject to availability.

 

Why is my automatic gearbox jerking or juddering?

Jerking or juddering when changing gear usually points to worn clutch packs, a failing solenoid, degraded transmission fluid or a torque converter fault. It's especially common in DSG and dual-clutch gearboxes, where worn or contaminated clutches cause judder when pulling away. Left undiagnosed it typically gets worse, so have it checked before it leads to a bigger repair.

What types of gearbox repairs do you carry out?

Service4Service repairs, rebuilds, reconditions and replaces automatic gearboxes of all types, including DSG, CVT, Powershift and other dual-clutch gearboxes, and hybrid transmissions. Work includes full diagnostics, mechatronic unit repairs, valve body and solenoid repairs, clutch replacement and reprogramming, across all major manufacturers.

 

Do your gearbox repairs come with a warranty?

Yes. Every automatic gearbox repair and rebuild is guaranteed for 12 months or 12,000 miles on parts and labour. Service4Service fits OEM (original equipment manufacturer) or manufacturer warranty-approved parts, meaning parts made by or for the vehicle maker, so the work protects your existing manufacturer's warranty.

 

Why has my automatic gearbox gone into limp mode?

Limp mode is a safety feature that activates when the transmission control system detects a fault. It restricts the car to one or two gears and reduced speed to prevent further damage. Common causes include low transmission fluid, a faulty solenoid, a sensor or wiring fault, or a control unit fault. Have it diagnosed rather than continuing to drive on it.

 

Areas We Cover