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 - Electrical System (61 05.13)
Reference number: 61 05.13
BMW OPERATING FLUIDS - ELECTRICAL SYSTEM
TECHNICAL SERVICE
| GROUP: | 61 Electrical System |
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 BATTERY
Only distilled water (available locally) is to be used when topping up the electrolyte level.
See S.I. Bulletin B 61 01 90 (3019) .
If a new battery (delivered dry) is to be placed into service, use only battery electrolyte ("sulfuric acid"), available locally.
2.0 SEALANT/SUPER GLUE/CONTACT CLEANER
Sealant
Aftermarket accessory installations which require routing electrical wires through metal body panels are to have the access holes sealed.
- Wurth Part No. 893430
Super Glue
The rubber seal around the trunk release button of E39 vehicles can be repositioned with Wurth Rubberized Super Glue (Part No. 893 4103).
3.0 ELECTRICAL CONTACT ENHANCER AND CONTACT CLEANER
Electrical Contact/Connector Grease
NyoGel 760G is resistive to moisture and can used for a lubrication of tin-lead type electrical connectors.
- NyoGel 760G BMW Part No. 83 23 0 392 297
For additional information and use applications, please refer to Service Information B72 04 02 dated May 2003 and Service Measure B34 201 03 dated June 2005.
Electrical Contact Enhancer
Stabilant 22A evaporates and leaves a thin polymer film which is conductive between the mating surfaces, while staying non-conductive between adjacent pins. At the same time it prevents the formation of any further harmful deposits.
- Wurth Part No. 893622 (Stabilant 22A)
Note 1: Stabilant 22A must not be used on Oxygen Sensor connectors. To function, oxygen sensors require a flow of oxygen through the terminal connector to the sensor element. Stabilant 22A will affect this flow of oxygen, and will result in irreparable damage to the sensor.
Note 2: Stabilant 22A must not be used on plug connectors which carry fiber optics. Stabilant 22A may migrate to the fiber optic and attenuate the optical signal.
See S.I. Bulletin B 61 05 00 .
Contact Cleaner Spray
Use to clean electrical and electronic components of dirt, grease, etc. Will not harm components or epoxy coverings. Allow to air dry. Do not dry with shop air supply as this may contaminate the connector.
- Wurth Part No. 89365 (Zero Residue Electrical Contact Cleaner)
See S.I. Bulletin B 61 05 00 .
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.