The Volkswagen CH is a 1,984 cc, inline‑four naturally aspirated petrol engine produced between 2006 and 2010. It features port fuel injection, dual overhead camshafts (DOHC), and variable intake timing, delivering 110 kW (150 PS) and 200 Nm of torque. The cast‑iron block and aluminium head provide durability with predictable performance characteristics.
Fitted to models such as the Mk5 Golf, Jetta, and Eos, the CH was engineered for balanced daily driving with smooth…
All production years 2006–2010 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/4567).
The Volkswagen CH is a 1,984 cc inline‑four naturally aspirated petrol engine engineered for compact and mid‑size applications (2006–2010). It combines port fuel injection with variable intake timing to deliver linear power delivery and service-friendly architecture. Designed to meet Euro 4 emissions standards, it prioritizes reliability and ease of maintenance over high specific output.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol (RON 95 min) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 82.5 mm × 92.8 mm | |
Power output | 110 kW (150 PS) @ 6,000 rpm | |
Torque | 200 Nm @ 3,500 rpm | |
Fuel system | Bosch Motronic port fuel injection (MPI) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven DOHC (maintenance-free design) | |
Oil type | VW 502 00 (SAE 5W‑40) | |
Dry weight | 140 kg |
The Volkswagen CH was used across Volkswagen's Mk5 platform with transverse mounting and shared with Audi for select applications. This engine received platform-specific adaptations—reinforced mounts in the Eos and revised cooling in the Jetta—and from 2008 the hydraulic lifters were upgraded, creating service part distinctions. Partnerships enabled Audi's A3 (8P) to use a closely related variant (though not identical). All adaptations are documented in OEM technical bulletins.
The CH's primary reliability risk is hydraulic lifter wear, with elevated incidence in vehicles using extended oil intervals or frequent short trips. VW internal data from 2009 indicated a notable share of pre-2008 engines requiring lifter replacement before 120,000 km, while UK DVSA records show minimal emissions-related MOT failures due to robust secondary air injection. Infrequent oil changes increase sludge formation, making oil specification and service discipline critical.
Analysis derived from Volkswagen technical bulletins (2008–2010) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CH is generally robust due to its simple naturally aspirated design, but early models (2006–2007) are prone to hydraulic lifter wear and oil sludge. Post-2008 revisions improved lifter durability. Using VW 502 00 oil and adhering to service intervals greatly enhances longevity.
Top issues include hydraulic lifter wear, oil sludge buildup, intake manifold swirl flap failure (DTC P2015), and water pump leaks. These are documented in VW service bulletins, especially SIB 2008‑05 for lifter concerns.
The CH powered the Golf Mk5, Jetta Mk5, and Eos from 2006–2010. All are 2.0 FSI 150 PS applications with transverse mounting and port fuel injection (not direct injection).
Limited potential. The CH responds modestly to ECU remapping (+10–15 kW) but lacks forced induction. Significant gains require forced induction conversion, which is uncommon. Most owners retain stock tune for reliability.
Real-world consumption is ~9.0 L/100km (city) and ~6.0 L/100km (highway), or about 32 mpg UK combined. Aggressive driving reduces this significantly; expect 28–36 mpg (UK) depending on use.
Yes. The CH is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is designed as maintenance-free and generally reliable if oil is changed regularly.
Volkswagen specifies 5W‑40 synthetic oil meeting VW 502 00 standards. Using non-approved oil risks lifter wear and sludge. Change every 15,000 km or annually, whichever comes first.
Comprehensive technical documentation and regulatory references
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GOV.UK: Vehicle Approval & V5C
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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GOV.UK: Vehicle Approval
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