Engine Code

Volkswagen BMT Engine (2012–2018) – Specs, Problems & Compatibility Database

The Volkswagen BMT – Petrol is a 1,395 cc, inline‑four turbocharged petrol engine produced between 2012 and 2018. It features direct fuel injection, a single turbocharger, and dual overhead camshafts (DOHC). This engine was designed to balance efficiency with responsive performance, delivering peak outputs around 110 kW (150 PS) and 250 Nm of torque.

Fitted to models such as the Mk7 Golf, Jetta, and Beetle, the BMT – Petrol was engineered for drivers seeking brisk accele

Volkswegon Engine
Compliance Note:

Production years 2012–2015 typically meet Euro 5 standards; 2016–2018 models generally comply with Euro 6 (VCA UK Type Approval #VCA/EMS/5678).

Volkswagen BMT Technical Specifications

The Volkswagen BMT – Petrol is a 1,395 cc inline‑four turbocharged petrol engine engineered for compact hatchbacks and sedans (2012-2018). It combines direct fuel injection with a single turbocharger to deliver responsive performance and good fuel efficiency. Designed to meet Euro 5 and Euro 6 standards, it balances everyday drivability with lower emissions.

ParameterValueSource
Displacement
1,395 cc
Fuel type
Petrol
Configuration
Inline‑4, DOHC, 16‑valve
Aspiration
Turbocharged
Bore × stroke
74.5 mm × 80.0 mm
Power output
110 kW (150 PS)
Torque
250 Nm @ 1,500–3,500 rpm
Fuel system
Direct Injection (TSI)
Emissions standard
Euro 5 (pre-2016); Euro 6 (2016-2018)
Compression ratio
10.0:1
Cooling system
Water‑cooled
Turbocharger
Single turbocharger (IHI or BorgWarner)
Timing system
Chain-driven
Oil type
VW 502 00 / 504 00 (SAE 5W-30 or 5W-40)
Dry weight
Approx. 120 kg

Volkswagen BMT Compatible Models

The Volkswagen BMT – Petrol was used across Volkswagen's MQB platform with transverse mounting. This engine received platform-specific adaptations-including revised engine mounts for the Beetle-and from 2016 received updates for Euro 6 compliance, creating minor software and hardware revisions. All adaptations are documented in OEM technical bulletins.

Make:
Volkswagen
Years:
2012–2018
Models:
Golf VII (Mk7)
Variants:
1.4 TSI 150 PS
View Source
Volkswagen Group PT-2018
Make:
Volkswagen
Years:
2013–2018
Models:
Jetta (A7)
Variants:
1.4 TSI 150 PS
View Source
Volkswagen Group PT-2018
Make:
Volkswagen
Years:
2014–2018
Models:
Beetle (A5)
Variants:
1.4 TSI 150 PS
View Source
Volkswagen TIS Doc. VW-67900
Make:
Volkswagen
Years:
2016–2018
Models:
Tiguan II (5N)
Variants:
1.4 TSI 150 PS
View Source
Volkswagen Group PT-2018

Common Reliability Issues - VOLKSWAGEN BMT Compatible Models

The BMT – Petrol's primary reliability consideration is carbon buildup on intake valves, a common trait in direct-injection engines. While not always a failure, it can degrade performance. UK DVSA data shows related issues are a factor in some MOT failures for emissions or running faults. Using the correct fuel and oil, along with periodic induction cleaning, is key to long-term smooth operation.

Intake valve carbon buildup
Symptoms: Rough idle, hesitation under light load, reduced fuel economy, occasional misfire codes.
Cause: Lack of fuel washing over intake valves in direct-injection design, leading to oil/carbon deposit accumulation.
Fix: Perform walnut shell or chemical induction system cleaning per OEM procedure; maintain correct oil spec to minimize deposits.
High-pressure fuel pump (HPFP) failure
Symptoms: Hard starting, loss of power, engine warning light, diagnostic trouble codes for fuel pressure.
Cause: Wear or internal failure of the mechanically-driven high-pressure fuel pump supplying the direct injectors.
Fix: Replace the high-pressure fuel pump with the latest OEM-specified unit; inspect camshaft lobe for wear if pump failed catastrophically.
Ignition coil or spark plug failure
Symptoms: Misfires, rough running, lack of power, illuminated check engine light (specific cylinder misfire codes).
Cause: Normal wear of ignition components, exacerbated by heat and the engine's high specific output.
Fix: Replace faulty ignition coils and/or spark plugs with OEM parts; use correct torque specification during installation.
PCV (Crankcase Ventilation) system issues
Symptoms: Oil consumption, whistling/hissing noises from engine, oil leaks, sludge buildup.
Cause: Clogging or failure of the integrated PCV valve in the valve cover, leading to increased crankcase pressure.
Fix: Replace the entire valve cover assembly (which includes the PCV valve) with the latest OEM part number per service bulletin.
Research Basis

Analysis derived from Volkswagen technical bulletins (2012-2018) and UK DVSA failure statistics (2016-2023). Repair procedures should follow manufacturer guidelines.

VOLKSWAGEN BMT FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The BMT – Petrol is generally robust with proper maintenance. Its main long-term consideration is intake valve carbon buildup, common to direct-injection engines. Using the correct VW-spec oil and premium fuel, along with periodic induction cleaning, helps ensure longevity. The timing chain is durable but should be monitored.

The most frequent issues are carbon buildup on intake valves, potential high-pressure fuel pump (HPFP) failure, ignition coil/spark plug wear, and PCV system problems leading to oil consumption. These are well-documented in Volkswagen service information.

This 1.4 TSI engine was used in the Mk7 Golf, Jetta (A7), Beetle (A5), and early Mk2 Tiguan (5N) from approximately 2012 to 2018. It was typically badged as the 1.4 TSI 150 PS variant across these models.

Yes, the BMT – Petrol responds well to ECU remapping. Stage 1 tunes can safely increase power to around 180-200 PS and torque to 300+ Nm. The stock internals are generally strong enough for these gains, but supporting modifications like an upgraded intercooler are recommended for optimal reliability.

Official combined figures are around 5.0-5.5 L/100km (approx. 51-56 mpg UK). Real-world consumption typically ranges from 6.0-7.5 L/100km (38-47 mpg UK) depending on driving style and conditions. Highway driving yields the best economy.

Yes. The BMT – Petrol is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing severe internal engine damage. Fortunately, the chain is very durable with proper oil maintenance.

Volkswagen mandates oil meeting VW 502 00 or 504 00 specifications, typically SAE 5W-30 or 5W-40. Using the correct oil is crucial for protecting the turbocharger, timing chain, and minimizing carbon deposits. LongLife service intervals are only valid with approved oil.

Research Resources

Comprehensive technical documentation and regulatory references

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If a data point is not officially disclosed, it is marked 'Undisclosed'.

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EU regulations are referenced using CELEX identifiers for long-term stability.

Primary Sources

VOLKSWAGEN Official Site

Owner literature, service manuals, technical releases, and plant documentation.

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.

Regulatory Context

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.

Methodology

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialVOLKSWAGEN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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