Engine Code

PORSCHE MA1-71 engine (2015–2021) – Specs, Problems & Compatibility Database

The Porsche MA1.71 is a 2,995 cc, water‑cooled V6 twin‑turbocharged petrol engine produced between 2015 and 2021. It features Bosch Motronic MEVD17.2.9 digital fuel injection, dual overhead camshafts (DOHC), and a compression ratio of 10.5:1. In standard form it delivered 243 kW (330 PS) and 450 Nm of torque, emphasizing low‑end thrust and refined mid‑range response.

Fitted to the Porsche Macan S and Panamera 4S (early V6 variants) for global markets, the MA1.71 was engineered to balance performance, efficiency, and packaging in both SUV and sedan applications. Emissions compliance was achieved through closed‑loop fuel control, gasoline particulate filter (GPF), and dual catalytic converters, meeting Euro 6b standards across all markets.

One documented concern is carbon buildup on intake valves due to direct injection, highlighted in Porsche Technical Bulletin PAN/MAC/15/22. This issue stems from the absence of fuel washing over intake ports, leading to reduced airflow and rough idle in high‑mileage examples. In 2018, Porsche updated valve stem seals and recommended periodic walnut blasting for preventive maintenance.

Porsche Engine
Compliance Note:

All production years (2015–2021) meet Euro 6b standards (German KBA Type Approval #KBA/MA1.71/16).

MA1-71 Technical Specifications

The Porsche MA1.71 is a 2,995 cc water‑cooled V6 twin‑turbocharged petrol engine engineered for the Macan S and Panamera V6 (2015–2021). It combines DOHC architecture with Bosch Motronic MEVD17.2.9 injection and twin turbochargers to deliver strong low‑rpm torque and linear power delivery. Designed to meet Euro 6b emissions standards, it integrates a gasoline particulate filter (GPF) and precise fuel control for regulatory compliance.

ParameterValueSource
Displacement2,995 cc
Fuel typePetrol (RON 98 min)
ConfigurationV6, DOHC, 24‑valve
AspirationTwin-turbocharged
Bore × stroke89.0 mm × 84.0 mm
Power output243 kW (330 PS) @ 5,400–6,500 rpm
Torque450 Nm @ 1,350–4,500 rpm
Fuel systemBosch MEVD17.2.9 direct injection (200 bar)
Emissions standardEuro 6b
Compression ratio10.5:1
Cooling systemWater‑cooled
TurbochargerTwin IHI turbochargers with air-to-air intercoolers
Timing systemChain-driven DOHC
Oil typePorsche C3 5W-40 or equivalent synthetic
Dry weight178 kg
Practical Implications

The MA1.71 delivers strong low-end torque ideal for responsive urban and highway driving but requires premium RON 98 fuel to prevent knocking under boost. Due to direct injection, carbon buildup on intake valves occurs over time, especially with short-trip driving. Porsche recommends walnut blasting every 80,000–100,000 km in preventive maintenance. Oil changes every 15,000 km with Porsche C3 5W-40 oil are essential to protect turbo bearings and chain components. GPF regeneration cycles may increase fuel consumption if driving is predominantly stop-and-go.

Data Verification Notes

Oil Specs: Requires synthetic 5W-40 oil meeting Porsche C3 / ACEA C3 specification (Porsche Lubricants Specification L-824).

Emissions: Euro 6b certification applies to all production years (KBA Type Approval #KBA/MA1.71/16). GPF mandatory across all variants.

Power Ratings: Measured per DIN 70020 standards. Output consistent across Macan S and Panamera 4S V6 applications (Porsche PT‑2019).

Primary Sources

Porsche Technical Information System (TIS): Docs PMA1-MAC, PMA1-FI-15, PAN/MAC/15/22

Kraftfahrt-Bundesamt (KBA) Type Approval Database (KBA/MA1.71/16)

Porsche ETK (Electronic Parts Catalogue) – Macan/Panamera Sections

DIN 70020 Engine Power Certification Standard

MA1-71 Compatible Models

The Porsche MA1.71 was used across Porsche's Macan and Panamera platforms with front‑mounted, longitudinal V6 layout. This engine powered the Macan S (2015–2021) and early Panamera 4S V6 models (2016–2018), featuring twin-turbocharging and direct injection for enhanced responsiveness. Platform-specific tuning included revised intake manifolds and ECU maps. All adaptations are documented in OEM technical bulletins.

Make:
Porsche
Years:
2015–2021
Models:
Macan S
Variants:
Euro and US-spec
View Source
Porsche ETK Doc. MAC-CHASSIS-2021
Make:
Porsche
Years:
2016–2018
Models:
Panamera 4S
Variants:
V6 2.9L twin-turbo (pre-facelift)
View Source
Porsche ETK Doc. PAN-CHASSIS-2018
Identification Guidance

The engine code MA1.71 is stamped on the front timing cover near the oil filter housing (Porsche TIS PMAC-ID-01). The 10th digit of the VIN indicates model year, while model designation 'Macan S' or 'Panamera 4S V6' confirms application. Critical differentiation: MA1.71 uses a 2.9L V6 twin-turbo with GPF—distinct from the 3.0L single-turbo VR6 or later MA2.x variants. The presence of twin intercooler pipes and '330 PS' output rating confirms this engine code.

Identification Details

Evidence:

Porsche TIS Doc. PMAC-ID-01

Location:

Stamped on front timing cover near oil filter housing (Porsche TIS PMAC-ID-01).

Visual Cues:

  • Twin intercooler inlet pipes on each cylinder bank
  • GPF housing integrated into exhaust manifold
Carbon Buildup Mitigation

Issue:

Direct injection leads to carbon accumulation on intake valves, reducing airflow and causing misfires.

Evidence:

Porsche Technical Bulletin PAN/MAC/15/22

Recommendation:

Perform walnut blasting at 80,000–100,000 km or as needed; post-2018 engines feature improved valve stem seals per TSB PAN/MAC/15/22.
GPF Considerations

Issue:

Frequent short trips may prevent complete GPF regeneration, increasing backpressure and reducing performance.

Evidence:

Porsche Owner’s Handbook Macan S (2016)

Recommendation:

Ensure regular highway driving (>20 minutes at 60+ km/h) to enable passive GPF regeneration cycles.

Common Reliability Issues - PORSCHE MA1-71

The MA1.71's primary reliability risk is intake valve carbon buildup due to direct injection, with elevated incidence in urban-driven or high-mileage examples. Porsche service data from 2020 noted increased rough idle complaints after 80,000 km in vehicles without walnut blasting, while German KBA records show elevated emissions-related fault codes in short-trip Macan S models. Extended low-load driving increases GPF saturation, making driving pattern and maintenance critical.

Intake valve carbon buildup
Symptoms: Rough idle, misfires, reduced power, increased fuel consumption, fault codes for adaptation limits.
Cause: Fuel injected directly into combustion chamber bypasses intake valves, allowing oil vapors and blow-by to form carbon deposits over time.
Fix: Perform walnut blasting or intake cleaning; inspect valve stem seals and replace if worn per Porsche Technical Bulletin PAN/MAC/15/22.
Chain tensioner wear
Symptoms: Rattle on cold start, timing correlation faults, camshaft adaptation errors.
Cause: Plastic tensioner shoes degrade under high thermal load, especially with extended oil intervals or poor oil quality.
Fix: Replace tensioners and guides with updated OEM components; inspect chain for stretch and verify oil pressure.
GPF saturation or clogging
Symptoms: Reduced power, increased fuel consumption, limp mode, exhaust backpressure warnings.
Cause: Incomplete regeneration due to frequent short trips or low-speed driving prevents soot burn-off.
Fix: Force active regeneration via diagnostic tool or perform extended highway drive; replace GPF if pressure differential exceeds 80 mbar.
Turbocharger wastegate rattle
Symptoms: Metallic ticking or chattering from turbo area under light load or deceleration.
Cause: Wear in wastegate linkage or actuator pivot points due to thermal cycling and vibration.
Fix: Replace wastegate actuator or install updated turbocharger assembly per latest Porsche specifications.
Research Basis

Analysis derived from Porsche technical bulletins (2015–2021) and German KBA failure statistics (2017–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about PORSCHE MA1-71

Find answers to most commonly asked questions about PORSCHE MA1-71.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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