The gearbox of the Mercedes-Benz X-Class is one of the components that most determines the longevity of this premium pick-up, launched in 2017. Inspired by the Nissan Navara and the Renault Alaskan, the X-Class combines the comfort of a saloon with the ruggedness of a workhorse — two qualities that depend directly on a well-maintained transmission. Looking to repair, maintain or replace the gearbox on your Mercedes-Benz X-Class? EDEN BOITES shares its expert advice here.
Gearboxes of the Mercedes-Benz X-Class
Produced between 2017 and 2020, the Mercedes-Benz X-Class had just one generation — the X-Class Type 470 — available in several exclusively diesel variants:
- X 220 d: 2.3 L diesel engine producing 163 bhp, paired with a six-speed manual gearbox;
- X 250 d: 2.3 L twin-turbo diesel producing 190 bhp, available with either the six-speed manual gearbox or the seven-speed 7G-TRONIC automatic gearbox;
- X 350 d: the top-of-the-range variant, powered by a 3.0 L V6 diesel developing 258 bhp, exclusively paired with the 7G-TRONIC and 4MATIC all-wheel drive.
On the X-Class, the 7G-TRONIC automatic gearbox stands out for its smoothness and responsiveness, while the six-speed manual offers more direct control — appreciated by drivers who prefer a more engaging drive. Browse our full stock in the gearboxes collection.
Towing Heavy Loads: What Are the Risks for the Gearbox?
Built for towing, the Mercedes-Benz X-Class nonetheless places considerable strain on its transmission when hauling heavy loads. Under high load, the gearbox is subjected to additional stress that accelerates wear on internal components. On automatic variants, overloading can cause the transmission fluid to overheat, reducing its effectiveness and service life; repeated gear changes under heavy load also promote premature wear of the clutches and gears.
To protect the X-Class gearbox, always observe the towing limits specified by the manufacturer. An additional transmission cooler helps maintain optimal operating temperatures, while smooth, anticipatory driving — avoiding sharp acceleration or harsh braking — reduces the impact on the drivetrain.
The Consequences of Neglected Maintenance
Insufficient maintenance of the Mercedes-Benz X-Class gearbox leads to accelerated deterioration of internal components, which can ultimately result in complete failure. The most common symptoms include erratic or delayed gear changes, clutch slip, and abnormal noises from the transmission. Beyond the mechanical damage, poor maintenance also degrades the vehicle's overall performance and increases fuel consumption, particularly when towing or driving off-road.
How to Extend the Life of the X-Class Gearbox
The first rule is to follow Mercedes's recommended periodic maintenance schedule to the letter, paying particular attention to fluid change intervals. Adopt a smooth driving style in everyday use: this reduces component wear and keeps your transmission in good condition over the long term. Finally, stay alert to any sign of a problem and consult a professional at the first hint of trouble. To understand the role of each internal component, read our article how a gearbox works.
Frequently Asked Questions
When should the gearbox oil be changed on the Mercedes-Benz X-Class?
The interval depends on the variant (manual or 7G-TRONIC automatic) and how the vehicle is used. Refer to your X-Class service book and always use the fluid specified by the manufacturer — intensive use or regular towing warrants more frequent checks.
Exchange gearbox or second-hand gearbox for my X-Class?
A second-hand gearbox is sold as found, whereas an exchange gearbox has been fully stripped, inspected and reconditioned. For a pick-up used as hard as the X-Class, an exchange gearbox offers the best balance of reliability and value.
How do I choose the correct gearbox reference?
The identification number stamped on your gearbox, along with the exact engine specification of your X-Class, will identify the right reference. If in doubt, our advisers will check compatibility with you.
Is it safe to drive with a gearbox that judders?
It is strongly inadvisable: continuing to drive risks making the damage worse and significantly increasing the repair bill. It is best to have the vehicle diagnosed as soon as possible.
Why Choose EDEN BOITES?
If gearbox replacement is necessary, EDEN BOITES offers a wide range of transmissions for the three-pointed star in its Mercedes gearboxes collection. Our exchange gearboxes are stripped, tested and reconditioned, then delivered directly to the workshop of your choice.
- Up to 24 months parts warranty on our gearboxes;
- Pay in up to 10 instalments;
- Delivery throughout France and the European Union, lead time confirmed on quote;
- Satisfaction guarantee on exchange units, subject to our Terms and Conditions.
For further reading, take a look at our advice on the V-Class gearbox and on the Mercedes Vito exchange gearbox. Request your free, no-obligation quote today.
