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.
Priority Table For Load-Circuit Peak Reduction And Shut-Down Modes
Legend:
- X = Permitted operation at the priority level concerned
- PM bus telegram priority A devices = Control peak reduction-priority
- PM bus telegram priority B devices = Control peak reduction-comfort
- Priority level:
0= Normal operation without peak reduction (KL 15 "ON")
1= Terminal R "ON", generator defect or under voltage acknowledged.
4= Corresponds to max. peak reduction.
5= Corresponds to medium peak reduction
6= Corresponds to minimum peak reduction
| Consumer Circuit | Priority Level | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 4 | 5 | 6 | ||||||
| A | B | A | B | A | B | A | B | A | B | |
| Rear Window Defogger | ||||||||||
| Off | X | X | X | X | X | |||||
| Intermittent operation | X | X | X | |||||||
| On | X | |||||||||
| Seat Heaters | ||||||||||
| Switched off | X | X | X | X | X | |||||
| Temperature level 1 X | X | X | X | X | ||||||
| Temperature level 2 X | X | X | X | |||||||
| Temperature level 3 X | ||||||||||
| Maximum rated output | X | X | ||||||||
| Half rated output | X | X | X | X | ||||||
| Heater Fan | ||||||||||
| Speed 0 | X | X | ||||||||
| Speed 1 | X | X | X | X | ||||||
| Speed 2 | X | X | X | X | ||||||
| Speed 3 | X | X | X | |||||||
| Steering Wheel Heater | ||||||||||
| Level 0 | X | X | X | X | X | |||||
| Level 1 (clocked mode) | X | X | X | |||||||
| Level 2 (fast heat up) | X | X | ||||||||
| Mirror Heater | ||||||||||
| Off | X | X | X | X | X | |||||
| On | X | |||||||||
| Windshield Heater | ||||||||||
| Off | X | X | X | X | X | |||||
| On | X | |||||||||
| Wet Arm Heater | ||||||||||
| Off | X | X | X | X | X | |||||
| On | X | |||||||||
| Headlight Washer System | ||||||||||
| Off | X | X | X | X | X | |||||
| On | X | |||||||||
| Active Seat | ||||||||||
| Off | X | X | X | X | X | |||||
| On | X | X | ||||||||
| Seat Ventilation | ||||||||||
| Off | X | X | X | X | X | |||||
| On | X | X | X | |||||||
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.
