Volkswagen ID.3: Air conditioner. Coolant circuit

• Assembly overview - high-voltage heater (PTC)
• Removing and installing PTC heater element 3 [Z132]

Assembly overview - high-voltage heater (PTC)

Assembly overview - high-voltage heater (PTC)

1 - PTC heater element 3 -Z132-

❏ → Rep. gr.87; Removing and installing PTC heater element 3 [Z132]

2 - Bolt

❏ Qty. 3

❏ 20 Nm

3 - Bolt

❏ Qty. 3

❏ 10 Nm

4 - Retainer

5 - Retainer

6 - Bolt

❏ Qty. 5

❏ 10 Nm

7 - Potential equalisation line

❏ → Electric drive motor 0EH, 0EJ; Rep. gr.93; Potential equalisation lines; Overview of fitting locations – potential equalisation lines

8 - Nut

❏ 8 Nm

9 - Electrical connector

10 - Electrical connector

❏ High-voltage cable

Removing and installing PTC heater element 3 [Z132]

Removing and installing PTC heater element 3 [Z132]

Special tools and workshop equipment required

♦ hose clamps, up to 25 mm in dia. -3094-

Removing

DANGER

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

– Have a high-voltage technician (HVT) or a high-voltage expert (HVE) de-energise the high-voltage system.

– → Rep. gr.93; De-energise high-voltage system.

– Remove air intake box of heater and air conditioning unit → Rep. gr.87; Removing and installing air intake unit of heater and air conditioning unit.

– Clamp off coolant hoses -2- using hose clamps, up to 25 mm in dia. -3094-.

– Detach clamps -3-, and pull off coolant hoses -2-.

– Unscrew nut -3-.

– Remove potential equalisation line -2-.

– Unclip retainers -5-.

– Disconnect electrical connectors -4- and -6-.

– Detach electrical connector -2- from bracket -1-.

– Push aside coolant hoses -2- and -4-, and unscrew bolts -3-.

– Detach heater element (PTC) 3 -Z132- -1-.

Installing

Install in reverse order of removal, observing the following:

Important

● Contact surfaces must be clean.

– Clean soiled contact point of potential equalisation line → Electrical system; Rep. gr.97; Cleaning contact surfaces.

– Connect potential equalisation line -2-, and tighten nut -3-.

– Connect electrical connectors -4- and -6-.

– → Rep. gr.19; Cooling system/coolant; Filling cooling system.

WARNING

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

– Have a high-voltage technician (HVT) or a high-voltage expert (HVE) re-energise the high-voltage system.

– → Rep. gr.93; Re-energising high-voltage system.

Tightening torques

♦ → Rep. gr.87; Assembly overview - high-voltage heater (PTC)

Air conditioner. Air ductAir conditioner. Other controlling and regulating components