Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Where is the Fuel Pump Relay Located on a Mercedes Class B?

Model: Mercedes Classe B W245, MK 1 - Years 2005-2011
Part: Fuel pump

If the fuel pump on your Mercedes Class B suddenly stops working, the first thing you should do is check the status of the respective relay, whose position is indicated in this video. As shown, it is located in the fuse box inside the cabin, beneath the glove compartment on the passenger side. To access it, you will first need to remove the lower right cover, then take off the dashboard panel and move the carpet. The relay in question is the third one in the second row, and if faulty, ensure to replace it with a spare of the same specifications.

Updated on 25 June 2026 by ScegliAuto

Video tutorial

Related tutorials

How do you locate the fuel pump relay position in a Mercedes-Benz B 200?
How do you locate the fuel pump relay position in a Mercedes-Benz B 200?
Mercedes Classe B (2005-2011 / W245, MK 1) Be careful, finding the fuel pump relay is not complicated, but it requires a bit of patience. Usually it is located in the fuse box under the glove …
Where Are the Fuses Located in the Mercedes-Benz B-Class?
Where Are the Fuses Located in the Mercedes-Benz B-Class?
Mercedes Classe B (2011-2019 / W246, MK 2) In the Mercedes-Benz B-Class, the fuses are contained within the designated fuse boxes located in the vehicle: this model has two. The first is locat…
How to Reset the SRS Light on a Mercedes B-Class?
How to Reset the SRS Light on a Mercedes B-Class?
Mercedes Classe B (2005-2011 / W245, MK 1) When the SRS light appears on the dashboard of the Mercedes B-Class, it indicates a generic problem that prevents the airbags from functioning correc…

Other guides you may be interested in

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos