The 5.0-liter Volkswagen AJS or Phaeton V10 5.0 TDI engine was assembled from 2002 to 2006 and was installed only on the Phaeton executive class sedan until its first restyling. There were versions of this motor for the Touareg SUV with the index AYH, BKW, BLE, BWF.
EA153 family: AAB, AJT, ACV, AXG, BAC, BPE, AXD, AXE, AJS, AYH.
Specifications
| Production years | 2002-2006 |
| Displacement, cc | 4921 |
| Fuel system | unit-injectors |
| Power output, hp | 313 |
| Torque output, Nm | 750 |
| Cylinder block | aluminum V10 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 18 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | gears |
| Phase regulator | no |
| Turbocharging | biturbo |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 10.5 |
| Fuel type | diesel |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for VW Phaeton 2003) — city — highway — combined |
16.5 8.5 11.4 |
| Engine lifespan, km | ~260 000 |
The engine was installed on:
- Volkswagen Phaeton 1 (3D) in 2002 – 2006.
Disadvantages of the VW AJS engine
- First of all, this diesel engine is known for the rather modest resource of its turbines.
- Also, the timing gear mechanism is not very reliable.
- Often there are leaks on the seals of the tandem pump or unit-injectors.
- On a long run, shedding of the coating of the cylinder walls is often found.
- Another weak point of this unit is the air conditioner clutch and generator.
Frequently asked questions about the Volkswagen AJS
How much power does the Volkswagen AJS make?
The Volkswagen AJS develops 313 hp and 750 Nm of torque.
How much oil does the Volkswagen AJS take and which one?
Engine oil capacity: 10.5 liters. Recommended oil: 5W-30.
Does the Volkswagen AJS have a timing belt or chain?
Timing drive of the Volkswagen AJS: gears.
Is the Volkswagen AJS turbocharged?
Yes, the Volkswagen AJS is turbocharged (biturbo).
Does the Volkswagen AJS need valve clearance adjustment?
No, the Volkswagen AJS has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Volkswagen AJS last?
The typical lifespan of the Volkswagen AJS is ~260 000 km with proper maintenance.
What is the fuel consumption of the Volkswagen AJS?
VW Phaeton 2003: city 16.5, highway 8.5, combined 11.4 L/100 km.
What cars was the Volkswagen AJS installed on?
Volkswagen Phaeton 1 (3D) in 2002 - 2006.
What are the common problems of the Volkswagen AJS?
First of all, this diesel engine is known for the rather modest resource of its turbines. Also, the timing gear mechanism is not very reliable. All known problems.
Some of the disadvantages listed here are not true.
It is stated that the timing gears on the engine can have issues with reliability, but there is no record of them failing on this engine. The timing gear mechanism on the V10 TDI is the same as on the 2.5 TDI engine used on the Transporter and R5 Touareg, and I have never seen nor heard any recounts of failures or issues with the timing mechanism on those engines.