The 4.0-liter twin-turbo V8 Porsche MDW.HC has been produced since 2024 for the facelifted Cayenne GTS and Cayenne GTS Coupe. In essence it is the MDC.UD updated for Euro 6e, now with 500 hp and 660 Nm.
EA825 family:
Panamera – MCV.DA, MCV.DD, MCV.DE, MDT.CA, MCV.DF, MDV.TA, MDV.TC, MDV.TD;
Cayenne – MDC.UA, MDC.UD, MDW.HB, MDW.HC, MDW.HA, MDW.NA, MDW.NF.
Specifications
| Production years | since 2024 |
| Displacement, cc | 3996 |
| Fuel system | direct injection |
| Power output, hp | 500 |
| Torque output, Nm | 660 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.7 |
| Features | AVS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on all shafts |
| Turbocharging | two BorgWarner B03G |
| Recommended engine oil | 0W-40 |
| Engine oil capacity, liter | 9.5 |
| Fuel type | petrol |
| Euro standards | EURO 6e |
| Fuel consumption, L/100 km (for Porsche Cayenne Coupe GTS 2025) — city — highway — combined |
21.5 11.1 12.6 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 230 |
The engine was installed on:
- Porsche Cayenne 3 (9YA) since 2024;
- Porsche Cayenne 3 Coupe (9YB) since 2024.
Disadvantages of the Porsche MDW.HC engine
- The engine appeared recently, so there are few statistics on its failures yet;
- Low-quality petrol can cause detonation and even scuffing in the cylinders;
- The plasma-sprayed coating of the cylinder walls also suffers from bad fuel;
- The turbochargers last long only with frequent oil changes, ideally more often than the official interval;
- The complex exhaust after-treatment system often throws errors.
Frequently asked questions about the Porsche MDW.HC
How much power does the Porsche MDW.HC make?
The Porsche MDW.HC develops 500 hp and 660 Nm of torque.
How much oil does the Porsche MDW.HC take and which one?
Engine oil capacity: 9.5 liters. Recommended oil: 0W-40.
Does the Porsche MDW.HC have a timing belt or chain?
The Porsche MDW.HC uses a timing chain.
Is the Porsche MDW.HC turbocharged?
Yes, the Porsche MDW.HC is turbocharged (two BorgWarner B03G).
Does the Porsche MDW.HC need valve clearance adjustment?
No, the Porsche MDW.HC has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Porsche MDW.HC last?
The typical lifespan of the Porsche MDW.HC is ~300 000 km with proper maintenance.
What is the fuel consumption of the Porsche MDW.HC?
Porsche Cayenne Coupe GTS 2025: city 21.5, highway 11.1, combined 12.6 L/100 km.
What cars was the Porsche MDW.HC installed on?
Porsche Cayenne 3 (9YA) since 2024; Porsche Cayenne 3 Coupe (9YB) since 2024.
What are the common problems of the Porsche MDW.HC?
The engine appeared recently, so there are few statistics on its failures yet. Low-quality petrol can cause detonation and even scuffing in the cylinders. All known problems.
