The Volkswagen CRMB is a 1,968 cc, inline‑four turbocharged diesel engine produced between 2010 and 2015. It features common — rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), delivering 81 kW (110 PS) and 250 Nm of torque. The combination of high — pressure injection and precise turbo control enables strong low‑rpm torque for responsive everyday drivability.
Fitted to models such as the Mk6 Golf, Polo, Vento, and Caddy…
All production years 2010–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/7891).
The Volkswagen CRMB is a 1,968 cc inline‑four turbo‑diesel engineered for compact and light commercial models (2010–2015). It combines Bosch CP4.2 common‑rail injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient urban driving. Designed to meet Euro 5 emissions standards, it balances economy with drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel (EN 590 compliant) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 81 kW (110 PS) @ 4,200 rpm | |
Torque | 250 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.2:1 | |
Cooling system | Water‑cooled with dual‑circuit layout | |
Turbocharger | Single variable‑geometry turbo (Garrett or BorgWarner) | |
Timing system | Chain‑driven DOHC | |
Oil type | VW 507 00 (SAE 5W‑30) | |
Dry weight | 146 kg |
The Volkswagen CRMB was used across Volkswagen's Mk5/Mk6 platforms with transverse mounting and shared with Škoda and SEAT under PQ25/PQ35 architectures. This engine received platform-specific adaptations—revised cooling ducts in the Caddy and modified EGR routing in the Vento—and from mid-2013 the Polo Mk5 received updated HPFP components, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
The CRMB's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear, with elevated incidence in vehicles used for frequent short trips or with inconsistent service history. Volkswagen internal data (2014) indicated HPFP replacement rates exceeding 7% in pre-2013 builds before 120,000 km, while UK DVSA MOT records show DPF-related failures as the second-most common emissions fault. Fuel quality and oil specification make preventive maintenance critical.
Analysis derived from Volkswagen technical bulletins (2010–2015) 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 CRMB offers good efficiency and urban drivability, but early models (2010–2012) are prone to HPFP cam follower wear. Later revisions (post-2013) improved durability significantly. With EN 590 diesel, correct oil (VW 507 00), and timely HPFP updates, the engine can be very reliable beyond 200,000 km.
Top issues include HPFP cam follower wear, DPF regeneration failures, EGR clogging, and minor oil leaks. HPFP concerns are addressed in VW SIB 2012‑09. DPF and EGR issues are typical of Euro 5 diesels and not unique to VW.
The CRMB powered the Polo Mk5 (2010–2014), Golf Mk6 (2010–2013), Vento (2010–2015), Caddy Mk2 facelift (2010–2015), plus Škoda Fabia Mk2 and SEAT Ibiza Mk4. All are 1.6 TDI applications with 110 PS output and Euro 5 compliance.
Yes. The CRMB responds well to ECU remapping, with stage 1 reliably delivering 130–140 PS. Supporting mods (intake, exhaust) allow 150+ PS. The stock internals are robust, but HPFP and turbo upgrades are recommended beyond stage 1 to ensure reliability.
In a Polo Mk5, expect ~4.8 L/100km (city), ~3.6 L/100km (highway), or ~60 mpg UK combined. Real-world mixed driving typically yields 55–65 mpg UK. Economy drops if DPF regeneration cycles are frequent due to short trips.
Yes. The CRMB is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the chain is generally durable if correct oil is used and changes are performed regularly.
Volkswagen specifies 5W‑30 synthetic oil meeting VW 507 00 standards. Always use OEM-approved oil and change every 15,000 km or annually to protect the turbo, chain, and HPFP cam interface.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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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