Engine Code

VOLKSWAGEN YS engine (2010–2016) – Specs, Problems & Compatibility Database

The Volkswagen YS Petrol is a 1,598 cc, inline‑four naturally aspirated petrol engine produced between 2010 and 2016. It features multi‑point fuel injection (MPI), dual overhead camshafts (DOHC), and a 16‑valve configuration. In standard form it delivered 77 kW (105 PS) at 5,800 rpm with 155 Nm of torque at 4,000 rpm, prioritizing simplicity, serviceability, and cost‑effective ownership.

Fitted to entry‑level variants of the Mk6 Golf, Mk5 Jetta, Polo, and Vento, the YS Petrol was engineered for emerging markets and budget‑conscious buyers seeking dependable urban mobility. Emissions compliance was achieved through a three‑way catalytic converter and electronic throttle control, allowing all units to meet Euro 5 standards.

One documented concern is premature wear of the exhaust camshaft lobes under extended oil change intervals, highlighted in Volkswagen Service Bulletin 2012‑09‑03. This issue stems from marginal lubrication film strength during high‑temperature operation. From 2013, revised camshaft metallurgy and updated oil pump relief valve settings were introduced to enhance durability.

Volkswegon Engine
Compliance Note:

Production years 2010–2016 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5892).

YS Technical Specifications

The Volkswagen YS Petrol is a 1,598 cc inline‑four naturally aspirated petrol engineered for compact and entry-level vehicles (2010–2016). It combines multi-point fuel injection with DOHC valvetrain to deliver predictable throttle response and straightforward maintenance. Designed to meet Euro 5 emissions standards, it emphasizes reliability and low running costs over performance.

ParameterValueSource
Displacement1,598 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationNaturally aspirated
Bore × stroke76.5 mm × 86.9 mm
Power output77 kW (105 PS) @ 5,800 rpm
Torque155 Nm @ 4,000 rpm
Fuel systemBosch Motronic MPI (multi-point injection)
Emissions standardEuro 5
Compression ratio10.5:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain (front‑mounted; durable design)
Oil typeVW 502 00 (SAE 5W‑40)
Dry weight110 kg
Practical Implications

The naturally aspirated layout provides linear power delivery and minimal complexity but requires adherence to 15,000 km oil change intervals using VW 502 00 oil to protect camshaft lobes. Extended intervals or incorrect viscosity can accelerate exhaust cam wear, particularly in hot climates or stop-start driving. The MPI system avoids direct-injection carbon issues but remains sensitive to fuel quality affecting injector spray patterns. Post-2013 engines feature hardened camshafts and revised oil pump calibration per Volkswagen SIB 2012‑09‑03.

Data Verification Notes

Oil Specs: Requires VW 502 00 specification (Volkswagen SIB 2012‑09‑03). Not interchangeable with ACEA A3/B4 alone.

Emissions: Euro 5 certification applies to all 2010–2016 YS Petrol engines (VCA Type Approval #VCA/EMS/5892).

Power Ratings: Measured under DIN 70020 standards. Output assumes RON 95 fuel (Volkswagen TIS Doc. V-7301).

Primary Sources

Volkswagen Technical Information System (TIS): Docs V-7210, V-7215, SIB 2012‑09‑03

VCA Type Approval Database (VCA/EMS/5892)

DIN 70020 Engine Power Measurement Standard

YS Compatible Models

The Volkswagen YS Petrol was used across Volkswagen's Mk5/Mk6 platforms with transverse mounting and deployed extensively in emerging markets. This engine received platform-specific adaptations—revised engine mounts in the Vento and modified cooling shrouds in the Polo—and from 2013 the facelifted Golf adopted updated camshaft metallurgy, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Volkswagen
Years:
2010–2013
Models:
Golf Mk6
Variants:
1.6 MPI 105 PS
View Source
Volkswagen Group PT-2020
Make:
Volkswagen
Years:
2010–2014
Models:
Jetta Mk5
Variants:
1.6
View Source
Volkswagen ETKA Doc. V-8921
Make:
Volkswagen
Years:
2010–2016
Models:
Polo Mk5
Variants:
1.6
View Source
Volkswagen TIS Doc. V-7401
Make:
Volkswagen
Years:
2011–2016
Models:
Vento
Variants:
1.6 Comfortline
View Source
Volkswagen TIS Doc. V-7410
Identification Guidance

Locate the engine code stamped on the front timing cover near the oil filler neck (Volkswagen TIS V-7220). The full code reads 'YS' followed by a production sequence. Pre-2013 units use camshaft part number 036 109 021 B; post-2013 use 036 109 021 D with hardened exhaust lobes. Critical differentiation from CFNA/CSTA engines: YS has black plastic intake manifold without variable intake flaps and uses a single coil pack (not individual coils). Service parts require production date verification—camshaft kits for engines before 07/2013 are incompatible with later units due to lobe profile and oil pump calibration changes (Volkswagen SIB 2012‑09‑03).

Identification Details

Evidence:

Volkswagen TIS Doc. V-7220

Location:

Stamped on front timing cover near oil filler neck (Volkswagen TIS V-7220).

Visual Cues:

  • Black plastic intake manifold (no variable-length runners)
  • Single ignition coil mounted on valve cover
Compatibility Notes

Camshaft:

Camshafts for pre-2013 YS engines are not compatible with post-2013 units due to metallurgical and lobe profile changes.

Evidence:

Volkswagen SIB 2012‑09‑03

Oil Pump:

Oil pump relief valve settings differ; mixing may reduce oil pressure at high temperature.
Camshaft Upgrade

Issue:

Early YS engines experienced exhaust cam lobe wear due to marginal oil film under high thermal load.

Evidence:

Volkswagen SIB 2012‑09‑03

Recommendation:

Install updated camshaft (036 109 021 D) and verify valve clearance per Volkswagen SIB 2012‑09‑03.

Common Reliability Issues - VOLKSWAGEN YS

The YS Petrol's primary reliability risk is exhaust camshaft lobe wear on early builds, with elevated incidence in high-temperature or high-mileage applications. Volkswagen internal data from 2014 indicated a notable share of pre-2013 engines requiring camshaft replacement before 160,000 km, while UK DVSA records show elevated misfire-related MOT advisories in vehicles used for frequent short trips. Extended oil change intervals and low-quality oil increase lobe stress, making oil specification and interval adherence critical.

Exhaust camshaft lobe wear
Symptoms: Ticking or tapping from cylinder head, misfires on cylinders 3–4, loss of power, uneven idle.
Cause: Insufficient surface hardness on early exhaust cam lobes combined with thermal stress and marginal oil film during extended service intervals.
Fix: Install latest OEM-specified camshaft and inspect valve stems/lifters; replace valve springs if out of spec per service bulletin.
Ignition coil pack failure
Symptoms: Misfires under acceleration, check engine light, rough idle—especially in humid conditions.
Cause: Degradation of the single coil pack insulation due to heat cycling and moisture ingress over time.
Fix: Replace with OEM coil pack and inspect spark plug condition; ensure proper sealing of ignition cover gasket.
Thermostat housing leaks
Symptoms: Coolant smell, low coolant level, white residue near timing cover, occasional overheating.
Cause: Plastic thermostat housing prone to cracking from thermal cycling and age-related brittleness.
Fix: Replace housing with latest OEM revision; flush cooling system and refill with G12++ coolant.
Engine mount deterioration
Symptoms: Excessive vibration at idle, clunking on gear changes, visible cracks in rubber mounts.
Cause: Rubber compound degradation accelerated by heat exposure and age, especially in tropical climates.
Fix: Replace all engine mounts with OEM hydraulic units; inspect subframe bushings for collateral wear.
Research Basis

Analysis derived from Volkswagen technical bulletins (2012–2016) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLKSWAGEN YS

Find answers to most commonly asked questions about VOLKSWAGEN YS.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Last Updated: 16 August 2025

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