Common questions

What should the fuse look like on Mercedes Benz air suspension?

What should the fuse look like on Mercedes Benz air suspension?

Procedures are similar for other Mercedes-Benz with air suspension, but the location of the relay and fuse may change. In this S-Class W220, the air compressor motor /pump is protected by Fuse 32, which is a MaxiFuse 40 Amp. Here is what a good fuse should look like.

Where is the fuse for the air suspension compressor?

Also, check the fuse for the air suspension compressor. On the Mercedes-Benz S-Class, the fuse box that contains the air suspension compressor relay and fuse are located on the right (passenger side) of the engine. Look at the 40 AMP fuse F32, make sure that it is not blown.

What to do if there is no power to the air suspension pump?

If there is no power going to the air suspension compressor, check the air suspension fuse and relay. Here is a picture that shows no power to the air suspension pump. The next step would be to use a professional diagnostic scanner such as the iCarsoft MB II to check the fault codes for the Air Suspension Control Unit.

Why does the fuse keep blowing on my air compressor?

If the air suspension compressor is kept engaged for too long, it can get damaged. There is the chance of a blown fuse for the air compressor pump. You can replace the fuse with a new one but if it keeps on blowing you have another issue, usually pointing at the air compressor pump / motor.

Procedures are similar for other Mercedes-Benz with air suspension, but the location of the relay and fuse may change. In this S-Class W220, the air compressor motor /pump is protected by Fuse 32, which is a MaxiFuse 40 Amp. Here is what a good fuse should look like.

Also, check the fuse for the air suspension compressor. On the Mercedes-Benz S-Class, the fuse box that contains the air suspension compressor relay and fuse are located on the right (passenger side) of the engine. Look at the 40 AMP fuse F32, make sure that it is not blown.

If there is no power going to the air suspension compressor, check the air suspension fuse and relay. Here is a picture that shows no power to the air suspension pump. The next step would be to use a professional diagnostic scanner such as the iCarsoft MB II to check the fault codes for the Air Suspension Control Unit.

If the air suspension compressor is kept engaged for too long, it can get damaged. There is the chance of a blown fuse for the air compressor pump. You can replace the fuse with a new one but if it keeps on blowing you have another issue, usually pointing at the air compressor pump / motor.

What causes a Mercedes Benz air suspension to fail?

Faulty relay or Blown Fuse The air suspension compressor relay is known to fail. It could either not engage the air suspension compressor at all or even worse keep it engaged for longer that required. If the air suspension compressor is kept engaged for too long, it can get damaged.

What should I do if my air suspension doesn’t work?

This will difficult to track down without a scanner. If you get the AIRMATIC Visit Workshop message, your car may still drive but do get it checked out as soon as possible. If the car drops over the next few days, the air suspension may not work to airlift the car. “AIRMATIC STOP, CAR TOO LOW!” This message may be scary. Don’t panic!

What happens when Mercedes Benz air suspension stops working?

When they stop working the air suspension control unit may no longer be able to recognize the height of the car. Your Mercedes-Benz will greet you with a warning message on the dash related to the airmatic failure. The car height may be correct and the car still rides fine, it’s just that the computer doesn’t know that.

This will difficult to track down without a scanner. If you get the AIRMATIC Visit Workshop message, your car may still drive but do get it checked out as soon as possible. If the car drops over the next few days, the air suspension may not work to airlift the car. “AIRMATIC STOP, CAR TOO LOW!” This message may be scary. Don’t panic!

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Ruth Doyle