Removing and installing heater glow plug Q8 for Airtronic D3 — AUDI
Removing and installing heater glow plug Q8 for Airtronic D3 on Audi: 10 steps. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Transporter T5 (7H), VW Transporter T6 (7E), VW Transporter T6 (7F)
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- Danger of burn injuries.The glow plug for heater Q8 may be hot.Allow to cool before removing. — Separate cable ties (1) and remove intermediate piece (2).
- Special tool for installing glow plug for heater Q8 is supplied.It is essential to check the mantle for carbonised deposits and damage if glow plug for heater Q8 is renewed.
📋 Procedure
- ⚠ Danger of burn injuries.The glow plug for heater Q8 may be hot.Allow to cool before removing. — Separate cable ties (1) and remove intermediate piece (2).
- Remove upper part of outer casing (item 1).
- Remove securing bolt (1).
- Press retaining clip (2) together on opposite side and lift out auxiliary heater control unit J364.
- Disconnect electrical connector for glow plug for heater Q8 on control unit.
- Remove protective cover for glow plug for heater Q8 from heater unit.
- Remove glow plug for heater Q8 using special tool supplied with new part. [Note: Special tool for installing glow plug for heater Q8 is supplied.It is essential to check the mantle for carbonised deposits and damage if glow plug for heater Q8 is renewed.]
- Insert glow plug for heater Q8 into heater unit.
- Tighten glow plug for heater Q8 using special tool supplied.
- The remaining steps for installation are carried out in reverse order. [Note: When installing glow plug for heater Q8, make sure that wires are clipped into retainer on auxiliary heater control unit J364 and that electrical connectors are connected.Perform a functional check after completing all work on heater unit.]
Other AUDI procedures
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- Removing and installing brake pads (PR 1LJ, 1LL) – Audi A6 C6 · 1 torque figures
- Removing and installing front brake pads (RS 6) – Audi A6 C6 · 1 torque figures
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.