Clean/Check/Corrosion Protect Wheel Bolting Components - AR40.10-P-1100-02A
Model all (4xWD, CAR, smart)
| 08.01.2021 | Coating of wheel bolts added. | Operation step 13. |
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1005-06A | Paste, hot lubrication 1 kg, DBL 6879.20 | A 000 989 76 51 |
Contact surface soiled with grease, not OK
Contact surface with corrosion products, not OK
Contact surface cleaned and without deformation, OK
Before mounting a wheel-and-tire assembly, check the wheel bolt connection components for corrosion and soiling. Clean up any soiling using a rag. Conduct any additional removal of soiling subject to separate repair order: When conducting additional cleaning work using emery cloth, wire brush, flat scraper, wheel hub cleaner or thread-cutting tools only the deposited corrosion and dirt layer may be removed. There must be no material removal from the component. Always replace damaged or deformed component part.
Any residue deposits of corrosion, contamination, material removal from components or damaged components prevent the necessary preload force being reached on the wheel bolts or wheel nuts, despite reaching the specified torque! Otherwise the wheel-and-tire assembly may work its way loose from the vehicle and cause damage to people, property or the environment!
Daimler AG shall not be held liable where disk wheels, wheel spacers and wheel bolts or wheel nuts from other manufacturers are used, that have not been checked and approved by Daimler AG. Notify the customer about this.
Conduct any additional removal of soiling subject to separate repair order:
- Cleaning the radius seats
- More intensive cleaning work using emery cloth, wire brush, wheel hub cleaner, flat scraper or thread-cutting tools
- Replacement of components.
Do not use bevel gear bolts for mounting MB light alloy wheels.
- Check contact surface on wheel hub, wheel flange, brake disk or brake drum, center hole guide and joints for deposited corrosion.
If problems exist,
↓
remove corrosion using wire brush or emery cloth or wheel hub cleaner, and then repeat operation step 1.
- Check contact surface on wheel hub, wheel flange, brake disk or brake drum, center hole guide and joints for damage and deformation.
If problems exist,
↓
replace affected component parts.
- Check inside thread in wheel hub or wheel stud for soiling such as, e.g. oil, grease and sand and deposited corrosion.
If problems exist,
↓
Remove corrosion using wire brush or thread cutter, and clean the thread.
- Check inside thread in wheel hub or thread on wheel stud for damage and deformation.
If problems exist,
↓
replace affected component parts.
Left half of picture: contact surface not cleaned, not OK, right half of picture: contact surface cleaned and without any deformation, OK
Radius seat not cleaned, not OK
Radius seat cleaned and without deformation and scoring marks, OK
- Check disk wheel and rim flanges for deformation and damage.
If problems exist,
↓
Replace disk wheel.
- Clean contact surfaces and center hole guide for disk wheel of lubricants and soiling such as, e.g. oil, grease and sand.
Use a rag.
- Check contact surfaces and center hole guide on disk wheel for deposited corrosion.
If problems exist,
↓
Clean corrosion using a suitable tool (see above) and then repeat operation step 7. Clean light alloy wheels with flat scraper and a rag only.
- Check contact surfaces and center alignment on disk wheel for deformation and damage.
If problems exist,
↓
Replace disk wheel.
- Check radius seats of disk wheels for soiling such as, e.g. oil, grease and sand.
If problems exist,
↓
Clean radius seats with rag.
- Check radius seats of disk wheels for damage, scoring marks, corrosion, ring shaped material removal in circumferential direction and out-of-roundness.
If problems exist,
↓
Replace disk wheel.
Corroded spherical cap, not OK
Spherical cap with seizing marks, material deposition, not OK
Spherical cap with even contact pattern, OK
- Check thread of wheel bolts or wheel nuts for soiling such as, e.g. oil, grease and sand and check for deposited corrosion.
If problems exist,
↓
Remove corrosion or soiling with wire brush or thread.
- Check radius seats of wheel bolts or wheel nuts for soiling such as, e.g. oil, grease and sand.
If problems exist,
↓
clean soiled radius seats with rag.
- Check radius seats of wheel bolts or wheel nuts for damage, scoring marks, corrosion, material deposition and out-of-roundness.
If problems exist,
↓
Replace wheel bolts or wheel nuts.
Installing differently coated wheel bolts on one wheel is not permissible.
Otherwise braking vibrations will occur.
Coating of wheel bolts
Wheel bolt with notches (new coating)
Wheel bolt without notches (old coating)
Apply corrosion protection
- Apply a thin coating of hot-lubrication paste as corrosion protection to the marked area of the center hole guide (arrow) on the wheel hub or wheel flange and wheel contact surface.