Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
BMW Operating Fluids - Body (41 07.10)
Reference number: 41 07.10
BMW OPERATING FLUIDS - BODY
TECHNICAL SERVICE
| GROUP: | 41 Body |
Fluids and sealers that are described in this Operating Fluids manual are BMW approved. Using non approved fluids or sealers can lead to premature failure and will not be covered under Warranty.
1.0 SEALING COMPOUNDS
Seam Sealer, Sikaflex 221 may be used to seal adjoining sheet metal parts which create creaking noises due to interactive contact. High-adhesion, polyurethane-based, black-colored.
Sikaflex 221 Sealer
- BMW Part No. 81 22 9 407 533
Other sealants for body panels are found in Group 97 (Body Cavity Sealings and Undercoatings).
2.0 LUBRICANTS
BMW offers several lubricants which are formulated for specific components in Group 41. Some of these lubricants also appear in the "Universal Lubricants" group.
3.0 DOOR HINGES AND PIVOTS
Moly spray for quieting squeaks and similar noises. (former BMW Part No. 81 22 9 400 720)
- 3M Part No. 8876
- Loctite Part No. 24378
4.0 DOOR BRAKES
Grease for any sliding contact area, especially door brake mechanisms. (former BMW Part No. 81 22 9 407 629)
- 3M Part No. 8878
- Loctite Part No. 20029
5.0 DOOR LOCKS
Lock cylinder lubricant prevents locks from jamming in sub-freezing temperatures. Insert tip of spray can directly into keyslot. (former BMW Part No. 81 22 9 407 421)
- 3M Part No. 8878
- Wurth Part No. 893051
- Loctite Part No. 20029
6.0 (HKL) AUTOMATIC TRUNK LID LIFT HYDRAULIC FLUID
E65/E66 Automatic Trunk Lid Lift Hydraulic Fluid
- BMW Part No. 51 24 7 066 901
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.