Talk to a Real Specialist
Quick Diagnosis. Clear advice.

Coventry Gearbox & Transmission Specialists
✓ Car slipping or struggling to change gear?
✓ Warning lights, vibration or unusual transmission noises?
✓ Automatic, manual & Powershift gearbox repairs
✓ Collection & delivery available throughout the West Midlands
✓ Slipping gears or struggling to change gear?
✓ Warning lights, vibrations or unusual transmission noises?
✓ Need clear answers from gearbox specialists you can trust?
✓ Car slipping gears or struggling to change gear?
✓ Warning lights, vibration or unusual transmission noises?
✓ Trusted transmission specialists with decades of experience
✓ Automatic, manual, DSG, CVT, DCT & Powershift gearbox repairs
✓ Collection & delivery available throughout Coventry and the West Midlands
Expert gearbox diagnostics, repairs and rebuilds for drivers across Derby and Derbyshire. Accurate fault diagnosis, honest advice and specialist transmission repair solutions.
⚠ Gearbox issues can get worse quickly if ignored
Speak to a Derby based Gearbox Technician Now
Talk to a Real Specialist
Quick Diagnosis. Clear advice.
Car Collection & Delivery
No Expensive Recovery
12 Month Warranty
Or 12,000 Miles
⏲ Lines Open: Mon - Fri 8am-5:00pm
✔️ 18+ Years Experience
✔️ 20,000+ Gearbox Repairs
✔️ Local Collection & Delivery
✔️ 12 Month Guarantee
Modern gearboxes contain hundreds of precision-engineered components working together to deliver smooth, efficient performance. When one component begins to fail, symptoms such as slipping gears, delayed engagement, transmission warning lights or unusual noises can quickly become more serious if left unresolved.
At A1 Premier Transmissions, we provide specialist gearbox diagnostics, repairs, reconditioning and rebuilds for motorists throughout Derby and the surrounding Derbyshire area. Our experienced technicians repair automatic, manual, DSG, CVT, DCT and Powershift transmissions using advanced diagnostic equipment to accurately identify mechanical, hydraulic and electronic gearbox faults.
By diagnosing the root cause before recommending repairs, we help customers avoid unnecessary replacement costs while restoring long-term gearbox reliability.
➜ Advanced transmission diagnostics using specialist equipment
➜ Experienced gearbox technicians with decades of expertise
➜ OEM or manufacturer-approved parts used where applicable
➜ 12-month / 12,000-mile warranty on completed repairs
➜
Collection and delivery available across Derby

1.
Talk Us About the Symptoms
Explain what's happening with your vehicle, whether that's slipping gears, delayed gear engagement, unusual noises, warning lights or loss of drive. Our gearbox specialists will discuss the symptoms and explain the next steps.

2.
Specialist Diagnosis
If your vehicle is unsafe to drive, we can arrange collection to one of our specialist repair centres.
Our technicians complete a comprehensive transmission assessment using manufacturer-level diagnostic equipment, road testing and mechanical inspection before providing a transparent quotation and discussing the most appropriate repair solution.

3.
Gearbox Repair & Testing
Following your approval, we complete the required gearbox repair, rebuild or component replacement using specialist equipment and quality replacement parts where appropriate.
Every transmission is thoroughly tested and calibrated where necessary to ensure dependable long-term performance.

4.
Back on the Road
Following successful quality checks and road testing, your vehicle will be ready for collection or delivery.
You'll receive a detailed invoice together with the reassurance of our 12-month / 12,000-mile warranty on completed repairs. Where applicable, we can also assist with finance options and warranty-provider claims.
Whether your vehicle requires transmission diagnostics, component repairs or a complete gearbox rebuild, A1 Premier Transmissions provides comprehensive gearbox repair solutions throughout Derby and Derbyshire.
We regularly assist customers from
Mickleover, Littleover, Chaddesden, Allestree, Spondon, Borrowash, Belper, Ilkeston and surrounding Derbyshire locations with automatic, manual, DSG, CVT, DCT and Powershift gearbox repairs.
Today's transmissions combine sophisticated electronics with precision-engineered mechanical components that require specialist knowledge to diagnose correctly.
Our experienced technicians use advanced diagnostic equipment to identify faults affecting internal gearbox components, hydraulic systems and electronic controls before recommending repairs, helping restore reliable performance without unnecessary replacement work.
Whether you're travelling through Derby city centre or using the
A38, A50, A52, A61 or M1, we provide professional gearbox repair solutions designed to keep you moving with confidence.


If your gearbox has started slipping, making unusual noises, displaying warning lights or struggling to change gear, our experienced technicians are here to help.
We support motorists throughout Derby and Derbyshire with specialist gearbox diagnostics, repairs, reconditioning and rebuilds for automatic, manual, DSG, CVT, DCT and Powershift transmissions.
➜ Honest advice from gearbox specialists
➜ Advanced transmission diagnostics
➜ Automatic, manual & DSG gearbox repairs
➜ Warranty-backed completed repairs
➜ Vehicle collection and delivery available
Customer Case Study.
A customer from Derby contacted A1 Premier Transmissions after noticing a metallic whining noise from the transmission together with occasional loss of drive during acceleration.
The symptoms gradually became more noticeable, particularly under load and during motorway driving.
Diagnosing the Fault
Following a comprehensive gearbox inspection, electronic diagnostics and internal transmission assessment, our technicians identified excessive wear within the planetary gear set, affecting power transmission throughout the gearbox.
Our diagnosis identified:
Our Repair Solution
The gearbox was dismantled and the damaged planetary gear components replaced using quality replacement parts. The transmission was then rebuilt, recalibrated where required and extensively tested to confirm smooth, reliable operation.
Following the repair, the gearbox operated smoothly with normal power delivery restored. The metallic noise disappeared, gear changes became consistent and the customer returned to everyday driving throughout Derby with confidence in the long-term reliability of their repaired transmission.
If you've noticed metallic gearbox noises, slipping gears, loss of drive, delayed engagement or transmission warning lights, our experienced technicians are here to help.
We regularly assist drivers across Derby, Mickleover, Littleover, Chaddesden, Allestree, Spondon, Borrowash, Belper, Ilkeston and the surrounding Derbyshire area with specialist gearbox diagnostics, planetary gear repairs, gearbox rebuilds and complete transmission repair solutions.
Yes. A1 Premier Transmissions provides specialist gearbox repairs for motorists throughout Derby and the surrounding Derbyshire area. We diagnose and repair automatic, manual, DSG, CVT, DCT and Powershift transmissions using advanced diagnostic equipment and specialist repair techniques.
We regularly assist customers throughout Derby, Mickleover, Littleover, Chaddesden, Allestree, Spondon, Borrowash, Belper, Ilkeston and surrounding Derbyshire locations. If you're unsure whether we cover your area, simply contact our team.
Yes. If your vehicle is unsafe to drive because of a gearbox fault, we can arrange vehicle collection from Derby and nearby Derbyshire areas. Charges apply, and our team will explain the available options before confirming your booking.
Yes. Whether your vehicle develops a gearbox fault while travelling through Derby or on the A38, A50, A52, A61 or M1, our team can advise you on the safest next steps and discuss vehicle collection where required.
A planetary gear set is a key internal component that allows an automatic transmission to produce multiple gear ratios efficiently. It consists of a sun gear, planet gears, a ring gear and a carrier. If one of these components becomes worn or damaged, it can affect the gearbox's ability to transfer power smoothly.
In many cases, yes. Depending on the extent of the damage, worn planetary gear components can often be replaced during a gearbox rebuild rather than replacing the complete transmission. We'll always recommend the most suitable repair following a full diagnosis.
Metallic noises can indicate wear within the planetary gear set, bearings, gears or other internal transmission components. Continuing to drive with these symptoms can increase internal damage, so arranging an early inspection is recommended.
Loss of drive can be caused by a range of transmission faults, including internal gearbox damage, clutch failures, hydraulic-pressure problems or planetary gear wear. Specialist diagnostics are essential to identify the exact cause before repairs begin.
Yes. Small amounts of wear inside the gearbox can develop into much larger failures if left untreated. Early diagnosis often allows repairs to be completed before additional components become damaged.
Yes. Our technicians repair automatic, manual, DSG, CVT, DCT and Powershift gearboxes across a wide range of vehicle manufacturers using advanced transmission diagnostic equipment and specialist repair procedures.
In many cases, yes. Repairing or rebuilding the original gearbox is often more cost-effective than replacing the complete transmission. Once we've diagnosed the fault, we'll explain your options clearly and recommend the most appropriate solution.
Drivers throughout Derby choose A1 Premier Transmissions because of our specialist transmission expertise, advanced diagnostic equipment and honest approach to gearbox repairs. From planetary gear repairs and gearbox diagnostics to complete transmission rebuilds, completed repairs are backed by our 12-month / 12,000-mile warranty, with finance options and assistance for warranty claims available where applicable.
Locations We Cover for Gearbox Repairs
At A1 premier Transmissions, we provide expert gearbox repairs and servicing across a wide range of locations. No matter where you are, our team of skilled technicians is ready to get your vehicle running smoothly again. From routine maintenance to complex repairs, we make sure every job is completed to the highest standard, ensuring your car stays safe, reliable, and roadworthy.
why TRUST US?

A1 Premier Transmissions with Service4Service
Registered Address:
Service4Service Limited, Enterprise House, 23 Parklands, Railton Road, Guildford, Surrey, GU2. Company Registration Number: 01767669575.
Service 4 Service LTD is acting as a credit broker offering finance products from Omni Capital Retail Finance Limited. Credit is subject to status.
