Mercedes B-Class: solutions for a faulty gearbox

• Gears are difficult to shift and the lever must be manipulated with force;
• Unusual noises. It may be a continuous dull snore, or a cracking sound when you engage the gears;
• The engine is running at high revs but the car is not accelerating. The transmission slips;
• A gearbox oil leak leaves stains on the underside of your vehicle;
• The warning light on the dashboard indicates a gearbox fault message;
• There's a smell of burning.

These faults do not necessarily mean that your Mercedes B-Class gear box is broken. It could be theclutch, a gearbox fault or a lack ofmaintenance. For your own safety and that of your passengers, it's vital to schedule a visit to your garage as soon as possible.

Diagnose the causes of problems on the Mercedes B-Class gearbox

To understand the major role of the gearbox, and the importance of its maintenance, let's take a very simple look at how it works .
A gearbox contains predefined gears. These control the shafts essential for gear changes. Synchronizers play a crucial role in ensuring smooth gearshifts. The entire system is housed in anoil-filled casing.
In the case of an automatic gearbox, the main difference is the absence of aclutch, replaced by a hydraulic torque converter. New generations are controlled by increasingly sophisticated electronic control units.
Over time, internal components wear out and need replacing. But the first cause of failure is often insufficient or leaking transmission fluid. This first causes overheating, before more serious damage.
Only a professional can diagnose the source of the problem and propose a repair or replacement. 

Identify the right Mercedes B-Class gearbox model

The part number depends on your vehicle version and engine type. The architecture of a Mercedes-Benz b170 1.7 petrol gear box differs from that of a b180 CDI 1.5. Identifying the model will help you find the right parts. Depending on the generation and model of your Mercedes, the gearbox may change. To find your way around the features of the different vehicle types in the B-Class, you'll need to learn more about the history of this car.
From 2005 to 2011. Type 245 is mostly equipped with engine blocks taken from the A-Class, including : 

•  the 1.5 95 hp ; 
• the 116 hp 1.7 ; 
• the 139 hp 2.0 ; 
• the 193 hp 2.0 T. 

On the diesel side, only a 109 hp or 140 hp 2.0 completes the range. The manual transmission offers 5 or 6 gears and, in 2012, Mercedes is offering a 7-speed dual-clutch automatic gearbox.
From 2012 to 2019, types 246 and 242 replace the previous version. The brand gives the front end a facelift and develops the market's first electric model, as well as a four-wheel-drive edition. In 2020, type 247 is launched with a hybrid variant and a new 8-speed DCT automatic gearbox.
Each period is characterized by a range of specific engines and gearboxes. To be sure of your vehicle's gearbox model, check your vehicle registration document or ask a specialist.

Troubleshooting Mercedes B-Class gearbox failure

Once you've identified the gearbox code and the fault, the mechanic has to decide whether to replace or repair your car's gearbox. These interventions are costly and require a certain expertise. Often, the mechanic takes charge of the entire repair, including ordering the faulty components.
EDEN BOITES offers you another option. You buy your Mercedes B-Class gearbox direct, and arrange for delivery to the location of your choice. In this way, you benefit from an advantageous price and save on intermediate costs. All your mechanic has to do is reassemble the new part.

EDEN BOITESspecializes in manual and automatic gearboxes. Our stock of used and exchange parts is one of the largest in Europe. If your part number isn't available, we'll take your old gearbox back for complete reconditioning , with a one-year warranty on the refurbished part.
Contact us for more information about our services!