Hydraulic Vane-Type Camshaft Adjuster VVT Gear for Audi Q7 3.6L VR6 with Case-Hardened Alloy Steel and ECU-Controlled Timing
The Camshaft Adjuster (Intake Camshaft Sprocket / VVT Gear) with OEM number 03H109087A is a verified direct-fit replacement for the AUDI Q7 4L (2006-2009), as well as Volkswagen Touareg (2003-2010, 3.6L VR6) and Volkswagen Passat CC (2008-2016, 3.6L VR6), all equipped with the 3.6L VR6 naturally aspirated engine (EA837 series).
The camshaft adjuster is a critical component of the Variable Valve Timing (VVT) system, mounted on the intake camshaft and driven by the timing chain. It operates by altering engine oil pressure to dynamically adjust intake cam timing based on RPM and load conditions, optimizing engine performance across the entire rev range.
| Part Number: | 03H109087A |
| Product Name: | Camshaft Adjuster |
| Car Model: | AUDI Q7 |
| Engine Model: | EA837 |
| Condition: | 100% Brand New |
| Material: | High-strength aluminum alloy & precision bearings |
| Quality Standard: | OEM equivalent / ISO quality control |
| Brand | Model | Years | Engine | Notes |
|---|---|---|---|---|
| Audi | Q7 (4L) | 2006-2009 | 3.6L VR6 (BHK) | Primary application |
| Volkswagen | Touareg | 2003-2010 | 3.6L VR6 (BHK/BHL/BWS) | Wide compatibility |
| Volkswagen | Passat CC | 2008-2016 | 3.6L VR6 | VR6 models only |
| Volkswagen | Passat (B6) | 2006-2010 | 3.6L VR6 | 4Motion / FWD variants |
- BHK — 3.6L V6 FSI (Audi Q7 4L, 2006-2009)
- BHL — 3.6L V6 FSI (Volkswagen Touareg)
- BWS — 3.6L V6 FSI (Volkswagen Touareg, later production)
- CDVB / CMTA / CMUA / CNLA / CPRA — Euro-spec / later emissions variants
Optimizes valve timing across all RPMs — advances timing for low-end torque and retards for high-RPM power.
Withstands high oil pressure and maintains timing accuracy over 150k+ km service life.
Restores factory engine performance — eliminates cold start rattle and hesitation.
Reduces diagnostic time — replaces components causing P0016, P0341 codes.
Simplified installation — works with VAG timing locking tools for precise alignment.
Reliable out of the box — each adjuster tested for hydraulic function and proper vane travel.
| QC Item | Verification Method |
|---|---|
| Dimensional accuracy | CMM inspection against OE blueprint |
| Hydraulic piston travel | Pressure test bench — verifies full advance/retard range |
| Vane seal integrity | Oil pressure retention test — confirms no internal leakage |
| Spring return function | Measures return-to-home position force and accuracy |
| Case hardness | Rockwell hardness test on sprocket teeth and housing |
| Laser marking | Permanent OE number marking as per factory specification |
| Total functional test | Random 2% of each batch tested on VVT test stand simulating engine conditions |
- Cold start rattle — internal wear or seal failure causes intermittent engagement
- Check Engine Light with P0016/P0341 — timing correlation code indicating adjuster malfunction
- Metallic rattling from timing cover — chain slap due to adjuster slack
- Rough idle / hesitation — incorrect intake cam timing at idle
- P0016 correlation code (crankshaft/camshaft position mismatch)
- P0341 implausible signal code
- Audible rattling on cold start that disappears after oil pressure builds
- Oil contamination in VVT system (sludge buildup)
Tools required: Camshaft locking tools (T40070 or equivalent), Crankshaft TDC locking pin, Torque wrench with angle measurement, New mounting bolts, Timing chain wedge tool
Critical pre-installation checks: Inspect oil control valve (N205), Check engine oil pressure, Inspect timing chain and guides
- Individually sealed in protective plastic bag with anti-rust coating
- Packed in foam-lined carton (branded or plain)
- Mounting bolts NOT included — must be purchased separately
- Bulk wholesale: 20 adjusters per master carton with dividers
- Shipping dimensions: Approx. 15*12*10 cm, weight approx. 1.2-1.5 kg
For Camshaft Adjuster 03H109087A (Intake VVT Sprocket) for AUDI Q7 4L 3.6L VR6:
- ✔️ Wholesale price for repair shops, parts distributors, and fleets
- ✔️ Single unit sample (verify fitment and quality)
- ✔️ Bulk order discount & custom packaging
- ✔️ QC report & fitment verification upon request
Please provide your quantity, destination port, and vehicle specifics (make/model/year, engine code BHK, VIN if available).
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