Removing and installing high-pressure sender G65: Audi R8
Step-by-step removing and installing high-pressure sender G65 for the Audi R8: 11 steps, 2 torque figures.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi R8 (4S, 2015–)
- Renewed: valve in refrigerant line
Don't miss
- Even minor damage to the connections (e.g. a small scratch) could cause leakage.Ensure absolute cleanliness when working (even the slightest contamination, e.g. a single hair at the connections, could cause leakage).
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 5 Nm (3.7 lb-ft) | Remove high-pressure sender G65(C), tightening torque |
| 8 Nm (5.9 lb-ft) | Remove high-pressure sender G65(B |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- ⚠ Danger from escaping pressurised refrigerant if valve in refrigerant line is defective.Frostbite on skin and other parts of the body.If refrigerant emerges from refrigerant line for more than 1 second when G65 is loosened, tighten G65 again immediately.Extract refrigerant before removing and installing Air conditioner with refrigerant R134a87Refrigerant circuit.Renew valve in refrigerant line if defective Air conditioner with refrigerant R134a87General notes on air conditioning systems. — Switch off ignition.
- Remove bumper cover (front) General body repairs, exterior63Bumper (front); Removing and installing bumper cover.
- Remove bolts (A) and remove air duct (B) to left condenser 19Radiator/radiator fan; Exploded view - radiator/radiator fan.
- Unplug electrical connector (A).
- Unscrew G65(B) from refrigerant line connection (D).
- Renew O-ring (C), lubricate lightly with refrigerant oil before fitting ; Assignment Electronic parts catalogue.
- Check G65(B) and connection for dirt and damage. [Note: Even minor damage to the connections (e.g. a small scratch) could cause leakage.Ensure absolute cleanliness when working (even the slightest contamination, e.g. a single hair at the connections, could cause leakage).]
- Tighten G65(B).
- Re-install removed components in reverse order.
- Interrogate the event memory of E87 and erase any faults displayed in "“Guided Fault Finding”" mode.
- As a final step, check operation of heater and air conditioner.
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
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.