Dry-clutch DCTs
The clutches run without oil. Used in many smaller and mid-sized cars, including the 7-speed DCT in Hyundai and Kia models and in the Nissan Qashqai and Juke. Wear and judder in stop-start traffic are common.
18 Years Experience
20,000+ Gearbox Rebuilds
12-Month Guarantee Parts & Labour
All Transmission Types Auto, CVT, DSG & More
Bespoke Collection & Delivery With all repairs over £1,500
Guaranteed protection on your manufacturer's warranty
Dual-Clutch Transmission Repairs
Our technicians are trained in dual-clutch repair, replacement and reconditioning on both wet and dry clutch systems. You get a quote before any work starts and updates on timescales throughout.
- Professional DCT repairs & replacements: expert work on all dual-clutch gearboxes, from component-level repairs to full rebuilds.
- Manufacturer warranty protection: all repairs are carried out without affecting your vehicle's existing manufacturer warranty.
- Wide range of DCT gearboxes: access to high-quality manufacturer gearboxes for replacement where needed.
- Advanced diagnostics & reprogramming: complete gearbox testing, fault diagnosis and ECU reprogramming for smooth performance.
- Vehicle collection & recovery: nationwide collection and delivery options, capped amount on repairs over £1,500.
- 12 months or 12,000 miles guarantee: parts and labour cover on every DCT repair or replacement.
0808 164 0418 · Lines open Monday to Friday, 8am to 5.30pm
DCT Gearbox Repair & Dual-Clutch Transmission Specialists
Is your car juddering when it pulls away, changing gear harshly in traffic or flashing a gearbox warning? Dual-clutch gearboxes are fast and efficient, but they are complex and have faults of their own. Our technicians repair DCT gearboxes from Hyundai, Kia, Mercedes-Benz, BMW, MINI, Nissan, Fiat, Jeep, MG and more, finding the real cause first so you only pay for the repair your gearbox actually needs.
- All major DCT Gearboxes
- 20,000+ gearboxes rebuilt
- 12 months / 12,000 miles guarantee
How Does a DCT Gearbox Work?
A dual-clutch transmission is two gearboxes in one. One clutch drives the odd gears, the other drives the even gears and reverse. While you are in one gear, the next one is already selected on the other shaft, so a gear change is simply a hand-over from one clutch to the other. That is why DCTs are growing in popularity: changes are faster and smoother than a traditional automatic, which also improves acceleration. Many also offer a manual mode, using paddles or the gear lever.
EngineDrive in
Clutch 1 · odd gears
1357
Clutch 2 · even gears
246R
WheelsDrive out
The mechatronic unit, the gearbox's built-in computer and hydraulics, pre-selects the next gear and swaps between the clutches in a fraction of a second.
Most dual-clutch gearboxes on UK roads fall into one of these groups:
Wet-clutch DCTs
The clutches run in oil to handle more torque. Found in more powerful cars, such as Mercedes-Benz 7G-DCT and 8G-DCT, BMW and MINI 7-speed DCT, and the 8-speed DCT in the Hyundai i30 N and Kona N. Old or contaminated oil is a common cause of faults.
Other dual-clutch gearboxes
Volkswagen Group DSG and Ford PowerShift gearboxes work on the same principle, and we have dedicated pages for each.
DSG gearbox repairsPowerShift gearbox repairs
DCTs are complex units. Each design has its own weak points and repair methods, and most need regular fluid changes to the manufacturer's schedule, so they should always be repaired by an experienced technician. Identifying exactly which DCT your car uses is the first part of every diagnostic.
Signs of DCT Gearbox Problems
Dual-clutch faults usually start small. Look out for:
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Judder when pulling awayA shudder from a standstill or when creeping in traffic, often a sign of clutch wear.
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Jerky or harsh gear changesSnatchy changes, especially between first and second or at low speed.
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Hesitation or delayed engagementA pause between selecting Drive or Reverse and the car moving.
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Revs rise without accelerationThe engine flares between gears, or the clutch slips under load.
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Flashing gear display or warning lightA flashing PRNDS or gear indicator, or a gearbox or transmission warning message.
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Limp mode or missing gearsThe car is stuck in one gear, or loses all the odd or all the even gears.
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Rattles, whines or grindingNew noises from the gearbox, often from worn bearings, selector forks or the flywheel.
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Burning smell or oil leaksOverheated clutches, or oil under the car, which can quickly damage a wet-clutch gearbox.
Driving on with a slipping or juddering DCT can overheat the clutches and damage the gearbox. Booking a diagnostic at the first sign of trouble gives the best chance of a straightforward repair rather than a full rebuild.
Why Do DCT Gearboxes Fail?
These are the faults we find most often when a dual-clutch gearbox comes into our workshops:
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Clutch wearThe clutches wear with use, and dry clutches in particular wear faster with lots of town driving, stop-start traffic and creeping in queues.
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Mechatronic unit faultsThe mechatronic unit controls the clutches and gear selection. Loss of hydraulic pressure, failed solenoids or valve body wear cause harsh changes, lost gears and limp mode.
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Control unit and sensor failuresFaulty speed or gear position sensors, wiring or control electronics give the gearbox the wrong information and trigger dashboard warnings.
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Old, low or contaminated oilWet-clutch gearboxes rely on clean oil of the right type. Missed oil changes, or leaking seals that let oil reach a dry clutch, soon lead to slipping and judder.
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Actuator, fork and bearing wearWorn clutch actuators, selector forks and release bearings cause noisy, slow or harsh gear changes.
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Dual-mass flywheel problemsA worn flywheel causes judder and rattles that are easily mistaken for a gearbox fault, so we always check it as part of the diagnosis.
Our DCT Transmission Repair Services
From a clutch replacement to a complete rebuild, we cover every part of the dual-clutch gearbox:
DCT gearbox diagnostics
Reading stored faults, checking live data and road testing to find what's really behind the symptoms.
Clutch replacement
Replacing worn dry or wet clutch packs, followed by the correct clutch adaptation.
Mechatronic unit repairs
Repairing or replacing the mechatronic unit, solenoids and valve body to restore smooth control.
Control unit and software
Control unit repair and replacement, software updates, coding and clutch relearns.
Actuator, fork and bearing repairs
Replacing worn clutch actuators, selector forks and release bearings before they cause further damage.
Leak and seal repairs
Fixing oil leaks and failed seals before they contaminate the clutches or starve the gearbox of oil.
DCT gearbox rebuilds
Full strip-down, inspection against manufacturer tolerances and renewal of worn internals.
Reconditioned DCT replacement
Where a rebuild isn't the sensible route, we supply and fit a reconditioned dual-clutch gearbox.
Our DCT Repair Process
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Find the fault
We test the gearbox properly, rather than relying on a fault code alone. Your diagnostic report is usually ready within 2 to 3 days.
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Agree the plan
You get a clear explanation of the fault, the recommended repair and a confirmed price. Nothing starts until you say yes.
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Carry out the repair
Our technicians repair the gearbox with OEM or manufacturer warranty-approved parts and the correct gearbox oil.
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Relearn and road test
After the repair, the clutches and gear selection are adapted so the gearbox relearns its settings, then the car is road tested.
Many DCT problems don't need a new gearbox. Where a clutch, mechatronic or software repair will fix the fault, that's what we'll recommend.
Cars With a DCT Gearbox
These are the models we see most often with a DCT gearbox, and we repair them all:
Hyundai
7DCT / 8DCT- i20
- i30
- i30 N
- i40
- Bayon
- Kona
- Kona N
- Tucson
- Ioniq Hybrid
Kia
7DCT- Rio
- Stonic
- Ceed
- ProCeed
- XCeed
- Soul
- Niro
- Optima
- Sportage
Mercedes-Benz
7G-DCT / 8G-DCT- A-Class
- Mercedes-AMG A 35
- Mercedes-AMG A 45
- B-Class
- CLA
- CLA Shooting Brake
- GLA
- GLB
- Mercedes-AMG GT
BMW
7-speed DCT / M DCT- 1 Series
- 2 Series Active Tourer
- 2 Series Gran Coupé
- X1
- X2
- M2
- M3
- M4
MINI
7-speed DCT- MINI Hatch
- MINI Convertible
- MINI Clubman
- MINI Countryman
Nissan
DCT- Qashqai
- Juke
- GT-R
Fiat & Jeep
DCT- Fiat 500X
- Fiat 500L
- Fiat Tipo
- Jeep Renegade
- Jeep Compass
MG
7DCT- MG HS
Not every version of these models has a DCT, as it depends on the engine and year. Driving a Volkswagen, Audi, Skoda or SEAT? See our DSG gearbox repairs. Driving a Ford? See our PowerShift gearbox repairs. Not sure what your car has? Call 0808 164 0418 with your registration and we'll check for you.
Why Drivers Trust Service4Service With Their DCT
- Dedicated gearbox specialists: 18 years spent repairing transmissions, with more than 20,000 gearboxes rebuilt.
- Experience across DCT designs: from Hyundai and Kia DCT to Mercedes-Benz 7G-DCT and 8G-DCT, and BMW and MINI DCT.
- Approved parts only: OEM or manufacturer warranty-approved components protect your existing warranty.
- Help with warranty claims: we can work with your warranty provider where your policy allows.
- Collection if it won't drive: when your DCT isn't safe to drive, we can arrange to collect it, subject to availability.
- Guaranteed work: 12 months or 12,000 miles cover on parts and labour, with the price agreed up front.
Talk to a DCT gearbox technician
Lines open Monday to Friday, 8am to 5.30pm
- Warranty Claims Undertaken
- Vehicle Recovery & Diagnostics
- 12 Months / 12,000 Miles Guarantee
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.
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Tell us what has happened
Complete the repair enquiry form and await a call, or phone 0808 164 0418 to speak with an advisor.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
Extra Payment Options for Your Gearbox Repair
Dual-Clutch Transmission Repair FAQs
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.
What are the common signs of DCT gearbox problems?
Common signs of Dual-Clutch Transmission gearbox issues include jerky or rough shifting, delayed gear engagement, unusual noises during gear changes, warning lights on the dashboard, and slipping gears.
Can I drive my vehicle with a malfunctioning DCT gearbox?
It's generally not advisable to drive a vehicle with a malfunctioning DCT gearbox. Continuing to drive with unresolved issues can lead to further damage and potentially more expensive repairs. It's best to have the problem diagnosed and repaired promptly.
What are the common causes of DCT gearbox problems?
Common causes of DCT gearbox issues include wear and tear of clutch components, damaged or malfunctioning sensors, electronic control unit (ECU) problems, low or contaminated transmission fluid, and manufacturing defects.
How often should I service my Dual-Clutch Transmission, and does it matter?
DCT gearboxes often need more frequent servicing than traditional automatics, and intervals vary by manufacturer, so always check your handbook. Regular fluid changes and inspections are the single best way to catch clutch or mechatronic wear before it becomes a major repair.
How much will my DCT gearbox repairs cost?
The overall cost of your DCT gearbox repair will depend on the nature of the issue, any parts needed and the overall labour costs. Following diagnostics, we will provide you with a full quote of costs so you can approve the work before we get started, ensuring you stay in the loop from the very start.
Why is my DCT gearbox juddering or jerking when pulling away?
Juddering or jerking at low speed usually points to worn clutch pack material, contaminated transmission fluid, or drifted clutch adaptation values in the mechatronic unit. It's one of the most common DCT complaints and tends to get worse if left, so it's best diagnosed early.
How long do DCT gearbox repairs take?
The total duration of Dual-Clutch Transmission gearbox repairs can vary depending on the specific issue and the availability of replacement parts. A small repair could take a matter of days, while a full replacement could take longer. We will be transparent with you from the start, giving you an estimated time for completion as well as any updates along the way if the situation changes.
What type of DCT repairs can you carry out?
Our team here at Service4Service are well-trained and experienced in DCT repairs, meaning that we can tackle a huge number of issues. From minor repairs and adjustments to the replacement of belts, the clutch itself, the full system and more, our team are able to help. We also conduct reconditioning following these repairs to ensure your vehicle gets back on the road in top condition.
How long do DCT gearboxes last?
With regular servicing, a DCT gearbox can last as long as the rest of the vehicle. Dry-clutch systems tend to be more sensitive to stop-start city driving, while wet-clutch versions are generally more tolerant. Fluid changes at the recommended intervals are the biggest factor in extending its lifespan.
How do I know if my DCT gearbox needs repair or replacement?
Whether your DCT gearbox needs repair or replacement depends on the severity of the issue. Minor issues may be resolved with repairs, such as replacing worn clutch components or repairing solenoids. However, extensive damage or repeated issues may require a complete gearbox replacement.
Warranty & Compliance Approved
