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 .
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 | Refer to vehicle handbook / manufacturer specification | |
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.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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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.
Aftermarket ECU tuning is common on the CRMB platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
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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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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