Renault Koleos: techniques for a reliable gearbox

Want to take good care of your vehicle? The gearbox is a key part of it: EDEN BOITES gives you all the keys you need to know how to detect signs of wear and how to repair a Renault Koleos gearbox. 

Renault Koleos: the different gearbox types

Koleos: a city SUV from Renault

Positioned as a mid-size SUV, Renault's Koleos stands out for its elegant design, advanced features and ability to deliver a driving experience that's both powerful and smooth. 

Through the different generations of this car, Renault has managed to evolve the Koleos, integrating cutting-edge technologies and significant improvements in terms of safety, connectivity and energy efficiency. 

This commitment to innovation and quality has earned the Koleos a solid reputation on the international market, appealing to drivers looking for a vehicle that combines good looks, comfort and performance.

While this model shines for its many assets, its parts are not free from the risk of breakdown or wear. 

The Renault Koleos gearbox

Depending on its generation, the Renault Koleos can be fitted with different types of gearbox, such as the Renault Koleos 4×4 2.0 DCI or the 2.5 4×4. Here are the main types of gearbox you'll find on a Renault Koleos:

• Manual gearbox: a basic option for entry-level models, offering manual control over gear shifting;
• Automatic gearbox: more comfortable for everyday driving, this option allows you to shift gears without driver intervention. On some Koleos models, this gearbox can be a traditional automatic with torque converter;
• Continuously variable transmission (CVT): this technology offers a smooth driving experience without the traditional gearshift jerks; 
• Dual-clutch automatic transmission (EDC): combining the efficiency of a manual gearbox with the comfort of an automatic, it enables rapid, almost imperceptible gear changes.

It's important to note that the availability of these gearbox types may vary depending on the year of manufacture of the vehicle, market specifics and trim levels.

How to detect gearbox wear?

Symptoms of transmission malfunction may differ between manual and automatic gearboxes. However, certain warning signals are common, such as :

• Abnormal noises: hearing squeaking, rattling or hissing noises when shifting gears or even in neutral may be a sign of trouble; 
• Complicated shifting : difficulty shifting gears, or gears that skip or don't engage properly, often signal a malfunction;
• Fluid leaks: if you notice traces of fluid under your vehicle, especially when parked, it could be the transmission fluid leaking;
• Vibrations or jolts : feeling vibrations or jolts when driving or shifting gears may indicate a problem with the transmission. 

In any case, these signals must be taken seriously: don't hesitate to consult your mechanic. 

How to repair a Renault Koleos gearbox?

Repairing a Renault Koleos gear box requires technical expertise and specific tools. The general steps involved in diagnosing and repairing a gearbox can vary considerably, depending on the type of transmission and the nature of the problem. However, here's a general overview of the repair process:

Initial diagnosis

To find out whether you can repair your gearbox, or whether you need to replace it entirely, the first step is to inspect it carefully. Here's how: 

• Remove your gearbox: be careful, this is a complex operation requiring mechanical skills; 
• Check the parts of your gearbox one by one; 
• Inspect the level and quality of the transmission fluid: dirty fluid or too little fluid can cause operating problems.

Specific repairs

Once this inspection has been carried out, some problems can be solved with a specific repair. In this case, there's no need to change the entire gearbox. For a manual gearbox, this is the case, for example, with the following repair actions: 

• Replacement of worn components, such as bearings, synchros or gears;
• Gear control system adjustment : adjustment or replacement of gear selector cable or gearshift.

For an automatic gearbox :

• Cleaning or replacing the transmission filter and changing the transmission fluid ;
• Repair or replacement of the solenoids that control the gear changes;
• Overhaul or replacement of the torque converter if the problem is related to the clutch;
• Repair of internal components such as oil pumps, clutch discs or brake bands.

Changing a gearbox with EDEN BOITES

Repairing a gearbox is complex. Without the right knowledge, experience and tools, it's easy to do more damage than you can repair. If you're not an experienced mechanic, it's strongly recommended that you entrust this task to a qualified professional. He or she can also make an accurate and reliable diagnosis. 

If the gearbox on your Renault Koleos is too badly damaged, your mechanic will advise you to change it completely. However, you don't have to buy a new gearbox directly from the garage. 

EDEN BOITES offers you different types of gearbox with a 1-year warranty and a reconditioning service, directly over the Internet. We can also collect your old gearbox with no need to travel, and free delivery. This is often the most economical solution! At EDEN BOITES, the gearbox for a Renault Koleos starts at €1,690 (incl. VAT). 

For more information, please contact us or request a quote online.