GLE63S Front upper suspension arm change
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Junior Member
Joined: May 2022
Posts: 22
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GLE63S
GLE63S Front upper suspension arm change
Looking for some tech assistance please. I'm changing upper suspension arms in the front and need to drop the shock. How do you disconnect the air without causing an issue and should I disconnect the battery and is there two of them and where is the aux one hidden? I found the main one under the driver seat but other one eludes me or can I pull a fuse?
Super Member
Joined: Jun 2025
Posts: 784
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From: USA
Yes, disconnect both batteries. Auxiliary battery is in the trunk, right side behind the trim.
Never disconnect air lines without depressurizing first. You must use a Mercedes scan tool to activate "service mode" on the air suspension. This is mandatory for safety.
Manually support the lower control arm with a jack before you start.
Never disconnect air lines without depressurizing first. You must use a Mercedes scan tool to activate "service mode" on the air suspension. This is mandatory for safety.
Manually support the lower control arm with a jack before you start.
