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 Solihull and the West Midlands. Accurate fault diagnosis, honest advice and specialist transmission repair solutions.
⚠ Gearbox issues can get worse quickly if ignored
Speak to a Solihull 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
Transmission fluid does far more than lubricate your gearbox. It provides hydraulic pressure, cools internal components and helps ensure smooth gear changes. When transmission fluid becomes contaminated or the transmission filter becomes restricted, gearbox performance can quickly deteriorate, leading to slipping gears, delayed engagement, overheating and increased internal wear.
At A1 Premier Transmissions, we provide specialist gearbox diagnostics, repairs, reconditioning and rebuild services for motorists throughout Solihull and the surrounding West Midlands area. Our experienced technicians repair automatic, manual, DSG, CVT, DCT and Powershift transmissions using advanced diagnostic equipment to accurately identify hydraulic, electronic and mechanical gearbox faults.
Rather than replacing complete gearboxes unnecessarily, we identify the root cause before recommending the most appropriate repair solution, helping restore long-term reliability and smooth transmission performance.
➜ 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 Solihull

1.
Talk Us About the Symptoms
Whether you've noticed slipping gears, delayed engagement, transmission warning lights, harsh gear changes or unusual noises, our gearbox specialists will discuss your symptoms and explain the next steps before arranging a detailed inspection.

2.
Comprehensive Diagnosis
If your vehicle isn't safe to drive, we can arrange collection to one of our specialist repair centres.
Our technicians carry out a comprehensive transmission assessment using manufacturer-level diagnostics, transmission fluid analysis and mechanical inspection before explaining the fault clearly and providing a transparent quotation.

3.
Specialist Gearbox Repair
Following your approval, we complete the required gearbox repair, transmission filter replacement, fluid system repair or gearbox rebuild using specialist equipment and quality replacement parts where appropriate.
Every transmission is then tested to ensure correct hydraulic operation, smooth gear changes and dependable long-term performance.

4.
Back on the Road
After successfully completing our inspections 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'll also assist with finance applications and warranty-provider claims.
Whether your vehicle requires transmission diagnostics, transmission fluid system repairs or a complete gearbox rebuild, A1 Premier Transmissions provides comprehensive gearbox repair solutions throughout Solihull and the West Midlands.
We regularly assist customers from
Shirley, Knowle, Dorridge, Balsall Common, Hampton-in-Arden, Olton, Bentley Heath, Cheswick Green and surrounding areas with automatic, manual, DSG, CVT, DCT and Powershift gearbox repairs.
Many gearbox faults begin with issues affecting transmission fluid quality or hydraulic flow. Diagnosing these problems early can help prevent unnecessary wear to expensive internal gearbox components.
Our experienced technicians use advanced diagnostic equipment to assess transmission fluid condition, hydraulic performance, electronic controls and internal gearbox components before recommending the most effective repair solution.
Whether you're travelling through Solihull town centre or using the M42, M40, A34, A41 or A45, we provide professional gearbox repair solutions designed to restore reliable long-term performance.


If your gearbox has started slipping, changing gear harshly, displaying warning lights or showing signs of transmission fluid problems, our experienced technicians are here to help.
We support motorists throughout Solihull and the West Midlands 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 Solihull contacted A1 Premier Transmissions after noticing increasingly slow gear changes, occasional slipping under acceleration and intermittent transmission warning lights. The symptoms had gradually worsened over several months.
Diagnosing the Fault
Following a comprehensive transmission inspection, fluid analysis and hydraulic testing, our technicians identified heavily contaminated transmission fluid and a partially restricted transmission filter, reducing hydraulic flow throughout the gearbox.
Our diagnosis identified:
Our Repair Solution
The transmission filter was replaced, the contaminated transmission fluid was renewed using the correct manufacturer-approved specification, and the hydraulic system was inspected before recalibrating the gearbox where required.
Extensive testing confirmed smooth gear changes and stable transmission performance.
Following the repair, gear changes became noticeably smoother, hydraulic performance was restored and the slipping symptoms were eliminated.
The customer returned to everyday driving throughout Solihull with confidence in the reliability of their repaired transmission.
If you've noticed slipping gears, delayed engagement, harsh gear changes, contaminated transmission fluid or transmission warning lights, our experienced technicians are here to help.
We regularly assist drivers across Solihull, Shirley, Knowle, Dorridge, Balsall Common, Hampton-in-Arden, Olton, Bentley Heath, Cheswick Green and the surrounding West Midlands area with specialist gearbox diagnostics, transmission filter repairs, fluid system diagnostics, gearbox rebuilds and complete transmission repair solutions.
Yes. A1 Premier Transmissions provides specialist gearbox repairs for motorists throughout Solihull and the surrounding West Midlands 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 Solihull, Shirley, Knowle, Dorridge, Balsall Common, Hampton-in-Arden, Olton, Bentley Heath and Cheswick Green, along with surrounding West Midlands locations.
Yes. If your vehicle is unsafe to drive because of a gearbox fault, we can arrange vehicle collection from Solihull and nearby areas. Charges apply, and our team will explain the available options before confirming your booking.
Yes. Whether your vehicle develops transmission problems on the M42, M40, A34, A41 or A45, our team can advise you on the safest next steps and discuss vehicle collection where required.
Yes. Contaminated transmission fluid can reduce lubrication, restrict hydraulic flow and cause overheating, delayed gear changes, slipping gears and premature wear of internal gearbox components. A professional transmission inspection can identify whether fluid condition is contributing to the fault.
The transmission filter removes debris and contaminants from the transmission fluid before it circulates through the gearbox. A restricted filter can reduce hydraulic pressure and affect gearbox performance.
A blocked transmission filter can cause delayed gear engagement, slipping gears, poor acceleration, harsh gear changes, overheating, unusual transmission noises and warning lights. The symptoms can worsen over time if left untreated.
The correct service interval depends on the manufacturer and gearbox type. Many automatic transmissions benefit from regular transmission fluid servicing to help maintain hydraulic performance and reduce internal wear. We can advise on the correct interval for your vehicle.
Yes. If contaminated transmission fluid is left unchanged for a prolonged period, internal gearbox components can suffer increased wear due to reduced lubrication and higher operating temperatures. Early diagnosis can often prevent more extensive repairs.
Yes. Our technicians repair automatic, manual, DSG, CVT, DCT and Powershift transmissions 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 significantly more cost-effective than replacing the complete transmission. Following diagnosis, we'll recommend the most appropriate solution based on the condition of your gearbox.
Drivers throughout Solihull choose A1 Premier Transmissions because of our specialist transmission expertise, advanced diagnostics and honest advice. From transmission fluid system 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.
