About this part
What it does. Lemforder Control Arm Lemforder 638-38646 01 controls wheel movement and keeps the tyre in contact with the road.
Symptoms that point to this part
- Bouncy or floaty ride
- Clunking over bumps
- Uneven tyre wear
- Nose-diving under braking
Service note. Suspension components are replaced in pairs per axle wherever possible.
Fitment. Catalogued as fitting 2018–2025 BMW M4, 2021–2024 BMW M2, 2018 BMW M3. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.