The Porsche MCT.BC is a 3,996 cc, twin‑turbocharged V8 petrol engine produced between 2019 and 2024. It features direct fuel injection, DOHC with variable valve timing (VarioCam Plus), and a dry‑sump lubrication system. In standard form it delivers 331–353 kW (450–480 PS) and 550–620 Nm of torque, offering high‑performance driving dynamics with refined responsiveness.
Fitted to the 971-generation Panamera and 92A-generation Cayenne, the MCT.BC was engineered to balance track-capable performance with daily usability. Emissions compliance was met through gasoline particulate filters (GPF), precise lambda control, and an advanced engine management system, allowing full Euro 6d compliance across all production years.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) drive lobe on the camshaft, highlighted in Porsche Technical Bulletin PTB‑2022‑15. This stems from material fatigue under repeated high-load conditions, particularly in vehicles used for frequent aggressive acceleration or track use.
All production years (2019–2024) meet full Euro 6d standards (VCA UK Type Approval #VCA/EMS/POR2023).
The Porsche MCT.BC is a 3,996 cc twin‑turbo V8 petrol engine engineered for high‑performance luxury sedans and SUVs (2019–2024). It combines Bosch HDP7 high-pressure direct injection with twin BorgWarner turbochargers to deliver broad torque and refined power delivery. Designed to meet Euro 6d emissions standards, it integrates GPFs and adaptive engine calibration for clean, responsive operation.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,996 cc | |
| Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
| Configuration | V8, DOHC, 32-valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 86.0 mm × 85.8 mm | |
| Power output | 331–353 kW (450–480 PS) | |
| Torque | 550–620 Nm @ 1,800–5,000 rpm | |
| Fuel system | Bosch HDP7 high-pressure direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.1:1 | |
| Cooling system | Water-cooled with dual circuits and integrated oil cooler | |
| Turbocharger | Twin BorgWarner variable-geometry turbochargers | |
| Timing system | Chain-driven DOHC with hydraulic tensioners | |
| Oil type | Porsche C4 0W-40 (or Porsche A40 5W-40) | |
| Dry weight | 211 kg |
The twin-turbo V8 delivers immediate torque and high-rev exhilaration, ideal for both track and grand touring. However, the HPFP drive lobe on the intake camshaft is sensitive to fuel quality and sustained high load—RON 98 fuel and strict adherence to oil change intervals (max 15,000 km or 12 months) are essential. Porsche C4 0W-40 oil ensures optimal camshaft and turbo bearing protection. Frequent short trips without GPF regeneration can trigger warning lights; owners should include highway driving at least monthly. Vehicles used on track should follow Porsche’s cooldown protocol to prevent turbo coking.
Oil Specs: Requires Porsche C4 0W-40 (ACEA C3-aligned) or Porsche A40 5W-40 (Porsche Lubricants Guide 2023).
Emissions: Full Euro 6d compliance for all 2019–2024 models (VCA Type Approval #VCA/EMS/POR2023).
Power Ratings: Measured per ECE R85. Power figures assume RON 98 fuel quality (Porsche PIWIS Doc. ENG-MCT-2019).
Porsche PIWIS Documentation: ENG-MCT-2019, FUE-2021, TIM-2020
Porsche Technical Bulletins: PTB-2020-07, PTB-2022-15
VCA Type Approval Database (VCA/EMS/POR2023)
EU Regulation (EU) 2017/1151
The Porsche MCT.BC was used across Porsche's 971 and 92A platforms with longitudinal mounting and shared architecture within the VW Group EA825 V8 family. This engine received platform-specific calibrations—enhanced cooling in the 971 Panamera and reinforced engine mounts in the 92A Cayenne—and from 2021 included an updated HPFP cam lobe profile to address wear, creating service distinctions. All adaptations are documented in OEM technical bulletins.
Engine code MCT.BC is stamped on the left cylinder bank near the exhaust manifold (Porsche PIWIS ENG-ID-02). VIN 7th digit 'C' or 'D' indicates V8 petrol in 971/92A. Pre-2021 models use camshaft with part number 9A0105014A; post-2021 use revised 9A0105014B with hardened HPFP lobe. Visual cue: all MCT.BC engines have black valve covers with 'V8 TwinTurbo' embossing. Do not confuse with MCT.BA (lower-output V8) or MGE (older V8 architecture). HPFP cam replacement must follow PTB-2022-15 for vehicles showing driveability symptoms.
The MCT.BC's primary reliability risk is HPFP drive lobe wear on early camshafts, with elevated incidence in track or aggressive street use. Porsche internal data from 2022 indicated a measurable uptick in camshaft replacements before 60,000 km in performance-focused vehicles, while UK DVSA statistics show minimal emissions-related MOT failures thanks to robust GPF control. Extended high-load operation without cooldown makes oil quality and fuel grade critical.
Analysis derived from Porsche technical bulletins (2019–2024) and UK DVSA failure statistics (2020–2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PORSCHE MCT-BC.
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