Installing Electric Passenger Compartment Heater
- Electric shock
- Short circuit
- Fire
- Explosion
→ Only appropriately trained and authorized persons are permitted to work on high-voltage vehicles and components.
→ Required qualification: High voltage technician or high voltage expert.
→ Observe national requirements and legislation for this work.
→ Always use insulated tools, e.g. > VAS 6883 - Insulated Tool Set when working on these components.
→ Observe general warning notes for working on the high-voltage system.
> 2X00IN GENERAL WARNING NOTES FOR WORKING ON THE HIGH-VOLTAGE SYSTEM
Information
Handling high-voltage lines:
- Do not support yourself or your tools on high-voltage lines and their components.
- Work involving metal-removing, deforming and sharp-edged tools close to high-voltage components and lines is prohibited.
- Work involving heat sources such as welding, soldering, hot air and thermal bonding close to high-voltage components and lines is prohibited.
- High-voltage lines must not be extensively bent or kinked.
- A visual inspection of the high-voltage connectors must be performed before installing the high-voltage lines. If there are signs of damage to the connectors, contacts and seals, the high-voltage line must be replaced.
- In the event of queries or uncertainties, consult the relevant high voltage technician.
- Perform installation in reverse order. Pay particular attention to the following:
Read the warning notices.
> 2X00IN GENERAL WARNING NOTICES FOR WORKING ON THE HIGH-VOLTAGE VEHICLE ELECTRICAL SYSTEM
Tighten new nut -3- securing electric passenger compartment heater holder to the body to the prescribed tightening torque. > Tightening torque 8 Nm
Electric passenger compartment heater on body
Information
If the bulkhead was replaced, the studs for fastening the holder for the electric passenger compartment heater were replaced by welded nuts.
In this case, tighten screws (see PET) to the same tightening torque (as for nuts 3 used previously).
Tighten nut -3- securing reservoir to the body to the prescribed tightening torque. > Tightening torque 8 Nm (6 ftlb.)
Reservoir on body
Tighten nut securing potential equalization line to electric passenger compartment heater to the prescribed tightening torque. > Tightening torque 8 Nm (6 ftlb.)
Potential equalization line to electric passenger compartment heater
- If the auxiliary heater -3- is replaced, the holder -1- must be converted. > Tightening torque 4 Nm (3 ftlb.)
Holder on electric passenger compartment heater