TOYOTA AYGO

Mk1 vs Mk2 Toyota Aygo: Key Differences

Box 1: TT02

Aygo MMT Gearbox Mk1 (2005–2014)

• Prone to gearbox ECU failures
• Original clutch design
• Most failures trace back to electronics or actuator

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Box 2: TT56

Aygo MMT Gearbox Mk2 (2014–2025)

• Stronger clutch
• ECU is more sensitive
• Can suffer gearbox synchro failure after heavy braking/crash

✅ Services We Offer for the Toyota Aygo:

Full Repairs 

from £695

✔️  Price includes labour

✔️   OE Clutch Kit (Aisin)

✔️   Nut & bolt clutch                          actuator rebuild

✔️   Gear shift motors                        cleaned/checked

✔️   Gearbox Oil Replaced

✔️   Diagnostics & Calibration

✔️  Road Test Gear                            Optimisation 

✔️  Nationwide collection &             delivery available

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Clutch Actuator Refurbishment 

 £225

✔️ Send in your original OE unit

✔️  Rebuilt by experts

✔️  Next day tracked return

✔️  Full nut & bolt strip down

✔️  High quality replacement               parts

✔️  Fitting advice available

✔️  Your unit arrives back to you         as shown in image

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Buy Parts 

 Call the store

✔️  New! Aygo Gearshift motors

✔️  New! Clutch actuator motors

✔️  Transmission ECU's

✔️  Stroke sensors

✔️  Gearboxes

✔️  Fitting advice available

✅ Thinking of selling your Aygo?             We pay more for cars with                   transmission issues —                           running or not.

⚠️ Warning About Chinese Actuators

Many aftermarket actuators (especially from China) don’t work — or fail again quickly. They can cause more problems and confuse diagnosis. If you’ve fitted one, do not throw away your old original unit. We only refurbish genuine OE parts.

Why Choose MMT Experts For Your Aygo?

✅ Over 30 years experience

✅ Thousands of cars repaired

✅ Cheapest full repair price in the UK

✅ Fastest actuator refurb turnaround

✅ Friendly advice anytime

✅ Nationwide recovery service available

✅ Only specialists in the UK

✅ Trusted by main dealer & workshops

 Not Sure What to Do Next?

Speak to a real expert today. No pressure, just honest advice from people who actually understand your car.

07702 795962

Toyota Aygo MMT Gearbox Problems & Repairs | MMT Experts

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Understanding the MMT (Multi-Mode Transmission) System in the Toyota Aygo

At MMT Experts, we specialize in diagnosing, repairing, and reconditioning semi-automatic gearbox systems found in the Toyota Aygo Mk1 and Mk2. The term MMT (Multi-Mode Transmission) refers to Toyota’s innovative gearbox technology that combines the fuel efficiency of a manual with the ease of an automatic. Both the first-generation (Mk1) and second-generation (Mk2) Aygo models with this system are prone to specific issues that require expert repair.

Our company name, MMT Experts, reflects our deep technical knowledge and hands-on experience with these exact transmission systems — and the Toyota Aygo MMT is one of the most common models we see in our workshop.

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How the Toyota Aygo MMT System Works

The Toyota Aygo’s MMT transmission is based on a traditional manual gearbox but uses electronic actuators to automate gear shifts and clutch operation.

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Key Components:

Manual transmission base with a traditional clutch and gears.

Electro-hydraulic actuators control gear selection and clutch engagement.

Transmission Control Unit (TCU) coordinates all actions to ensure smooth driving.

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Operating Modes:

Automatic Mode: Gear changes occur automatically based on throttle input, speed, and driving conditions.

Manual Mode: The driver can manually select gears using the gear lever, while the clutch remains automated.

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Creep Function:

Allows the car to gently roll forward without accelerator input — perfect for parking and low-speed maneuvering.

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Why Drivers Choose the Toyota Aygo MMT

Fuel Efficiency: Retains the economical performance of a manual.

City-Friendly: The automatic shifting makes urban driving much easier.

Manual Flexibility: Offers driver control with less effort.

Common MMT Faults in the Toyota Aygo Mk1 and Mk2

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Despite the smart design, the Aygo’s MMT system can develop faults over time. At MMT Experts, we’ve repaired hundreds of Aygos experiencing gearbox and actuator issues.

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Typical Symptoms:

Stuck in Neutral: Unable to engage or shift into gear.

Loss of Drive: The vehicle drops into neutral while driving.

Flashing "N" Light: A major indicator of MMT issues.

Jerky or Delayed Gear Changes: Rough or inconsistent shifting.

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Common Diagnostic Trouble Codes:

P0900: Clutch Actuator Circuit Malfunction

P0810: Clutch Position Control Error

P0909: Gate Select Control Fault

P0919: Gear Shift Position Error

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These are all known faults specific to the Aygo’s MMT gearbox and can typically be resolved with expert diagnosis and quality repairs.

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How the MMT Actuators Function

Clutch Actuator:

Controls clutch engagement and disengagement.

A worn actuator can cause slipping or failure to select gears.

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Gear Shift Actuator:

Shifts gears within the transmission according to TCU commands.

Any malfunction can result in poor gear engagement.

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Transmission Control Unit (TCU):

Coordinates the timing and function of both actuators.

Problems with the TCU can cause delayed or incorrect shifting.

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Toyota Aygo MMT Repairs by MMT Experts

As specialists in Toyota Aygo MMT systems, we provide a complete range of repair services:

Diagnostic Checks: Full system scan to identify all fault codes.

Actuator Reconditioning: Using premium-grade parts and precision calibration.

Clutch Replacement: Expert fitting and adjustment for MMT compatibility.

Software Updates: Keeps your MMT system performing at its best.

Electrical Repairs: Repairing wiring and module issues to restore performance.

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Why Toyota Aygo Owners Trust MMT Experts

Lifetime Warranty on all reconditioned parts and actuators.

Nationwide Collection and delivery service.

Fast Repairs — typically within 2–4 working days.

Trusted by Hundreds of Toyota Aygo owners across the UK.

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We restore your Aygo’s gearbox to full working condition, ensuring smooth, safe, and reliable driving — just as Toyota intended.

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Book Your Toyota Aygo MMT Gearbox Repair

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If your Toyota Aygo Mk1 or Mk2 is flashing the "N" light, stuck in neutral, or struggling to change gear, act now. These symptoms typically worsen without proper repair.

Call:            07702 795962 

Email:          support@mmtexperts.com 

Workshop:  Windsor, Berkshire, UK

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Let MMT Experts bring your Toyota Aygo back to life with precise MMT system repair and calibration.