The 4.0-liter twin-turbo V8 Porsche MDC.UD with 460 hp was used from 2020 to 2023 in the third-generation Cayenne GTS and Cayenne GTS Coupe. After the facelift it was replaced by the more modern MDW.HC.
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 | 2020-2023 |
| Displacement, cc | 3996 |
| Fuel system | direct injection |
| Power output, hp | 460 |
| Torque output, Nm | 620 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 10.1 |
| Features | AVS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at intake and exhaust |
| Turbocharging | two BorgWarner B03G |
| Recommended engine oil | 0W-40 |
| Engine oil capacity, liter | 9.5 |
| Fuel type | petrol |
| Euro standards | EURO 6d |
| Fuel consumption, L/100 km (for Porsche Cayenne GTS 2021) — city — highway — combined |
22.5 12.0 14.1 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 230 |
The engine was installed on:
- Porsche Cayenne 3 (9YA) in 2020 – 2023;
- Porsche Cayenne 3 Coupe (9YB) in 2020 – 2023.
Disadvantages of the Porsche MDC.UD engine
- 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;
- Owners complain about coolant leaks and failures of the fuel lift pump;
- The complex exhaust after-treatment system often throws errors.
Frequently asked questions about the Porsche MDC.UD
How much power does the Porsche MDC.UD make?
The Porsche MDC.UD develops 460 hp and 620 Nm of torque.
How much oil does the Porsche MDC.UD take and which one?
Engine oil capacity: 9.5 liters. Recommended oil: 0W-40.
Does the Porsche MDC.UD have a timing belt or chain?
The Porsche MDC.UD uses a timing chain.
Is the Porsche MDC.UD turbocharged?
Yes, the Porsche MDC.UD is turbocharged (two BorgWarner B03G).
Does the Porsche MDC.UD need valve clearance adjustment?
No, the Porsche MDC.UD has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Porsche MDC.UD last?
The typical lifespan of the Porsche MDC.UD is ~300 000 km with proper maintenance.
What is the fuel consumption of the Porsche MDC.UD?
Porsche Cayenne GTS 2021: city 22.5, highway 12.0, combined 14.1 L/100 km.
What cars was the Porsche MDC.UD installed on?
Porsche Cayenne 3 (9YA) in 2020 - 2023; Porsche Cayenne 3 Coupe (9YB) in 2020 - 2023.
What are the common problems of the Porsche MDC.UD?
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. All known problems.
