The Porsche DCHA is a 2,967 cc, twin‑turbocharged V6 petrol engine introduced in 2019 for the Panamera and Cayenne platforms. It features direct fuel injection, variable valve timing (VarioCam Plus), and a DOHC 24‑valve layout, producing 250 kW (340 PS) and 500 Nm of torque. This engine balances high performance with compliance to Euro 6d emissions standards through gasoline particulate filtration and precise combustion control.
Fitted to premium Porsche SUVs and sedans—including the Cayenne (9YA) and Panamera (971)—the DCHA was engineered for refined, responsive grand touring with strong mid‑range torque and minimal turbo lag. Emissions compliance is achieved via a close-coupled three-way catalyst, port and direct injection (PFI+DI), and a gasoline particulate filter (GPF), enabling full adherence to stringent Euro 6d-TEMP and later Euro 6d standards.
One documented reliability note is carbon buildup on intake valves in early production units, mitigated in late‑2020 revisions through updated valve stem seals and recalibrated injection timing. Porsche Technical Service Bulletin PTB‑20‑08 outlines inspection criteria for GPF saturation under repeated short-trip conditions, emphasizing the need for periodic highway driving to enable passive regeneration.
All DCHA engines from 2019 meet Euro 6d-TEMP; models from late 2020 onward comply with full Euro 6d emissions (VCA UK Type Approval #VCA/ICE/DCHA).
The Porsche DCHA is a 2,967 cc twin‑turbocharged V6 petrol engine engineered for premium SUVs and executive sedans (2019–present). It combines direct and port fuel injection with twin turbochargers to deliver responsive torque and high-rev refinement. Designed to meet Euro 6d standards, it integrates a gasoline particulate filter for urban emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,967 cc | |
| Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 85.0 mm × 87.4 mm | |
| Power output | 250 kW (340 PS) | |
| Torque | 500 Nm @ 1,600–5,000 rpm | |
| Fuel system | Combined PFI + DI (Bosch HDEV6 injectors) | |
| Emissions standard | Euro 6d (full compliance from late 2020) | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled with dual thermostats | |
| Turbocharger | Twin parallel Garrett turbochargers with electronic wastegates | |
| Timing system | Chain-driven DOHC with VarioCam Plus | |
| Oil type | Porsche C4 5W‑40 synthetic (API SP/ILSAC GF-6) | |
| Dry weight | 182 kg |
The twin-turbo V6 delivers linear power and minimal lag, ideal for spirited daily use. However, the direct injection system necessitates periodic intake valve cleaning unless PFI support is sufficient—early 2019–2020 units are more prone to carbon fouling. Porsche C4 5W-40 oil is mandatory to protect turbo bearings and chain tensioners under high thermal loads. Vehicles used primarily for short urban trips may experience GPF saturation; Porsche recommends at least one 30-minute highway cycle monthly to enable passive regeneration, as detailed in PTB‑20‑08.
Oil Specs: Requires Porsche C4 5W-40 synthetic meeting ACEA C3 and API SP standards (Porsche TIS LUB-DCHA).
Emissions: Euro 6d-TEMP applies to 2019–mid-2020; full Euro 6d for late 2020+ (VCA Type Approval #VCA/ICE/DCHA).
Power Ratings: Measured under DIN 70020. Peak output assumes RON 98 fuel and functional intercooling system (Porsche PT‑2022).
Porsche Technical Information System (TIS): Docs M30/96, FUE-DCHA, TRB-DCHA, LUB-DCHA
VCA Type Approval Database (VCA/ICE/DCHA)
EU Regulation (EU) 2017/1151 – WLTP and RDE Testing
The Porsche DCHA was used across Porsche's Panamera (971) and Cayenne (9YA) platforms with longitudinal front-engine mounting and no third-party licensing. This engine received minor ECU and emissions calibration updates in late 2020 to achieve full Euro 6d compliance—primarily via GPF and injection strategy refinements—creating subtle but documented differences in service procedures. All adaptations are documented in OEM technical bulletins.
Engine code 'DCHA' is stamped on the left cylinder head below the intake manifold (Porsche TIS M30/96). The VIN 7th digit is 'A' for V6 petrol Cayenne or 'G' for Panamera variants. Early units (2019–mid-2020) feature a single-stage GPF; post-late-2020 engines have a dual-brick GPF system visible in exhaust routing. Do not interchange ECU or turbo actuators across the 2020/2021 boundary due to revised boost control logic per Porsche PTB‑20‑11. Fuel rails are visually identical but differ in injector pulse calibration.
The DCHA's primary reliability risk is gasoline particulate filter (GPF) saturation under urban use, with increased backpressure potentially triggering limp mode. Porsche internal field data from 2021 noted elevated warranty claims for turbo actuator calibration drift in early builds, while UK DVSA service records show occasional misfire codes linked to injector carbon stacking. Frequent short journeys without highway regeneration cycles make proactive maintenance critical.
Analysis derived from Porsche technical bulletins (2019–2023) and UK DVSA failure statistics (2020–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PORSCHE DCHA.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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