4.2-liter diesel engine Audi BTR or Q7 4.2 TDI was produced from 2007 to 2009 and was installed only on the first generation of the popular crossover Q7 before its restyling. A similar diesel under the hood of A8 sedans in the D3 body has its own index BVN.
The EA898 series also includes: AKF, ASE, CKDA and CCGA.
Audi BTR 4.2 TDI engine specifications
| Characteristics | Value |
|---|---|
| Fine volume | 4134 cm³ |
| Power system | Common Rail |
| Engine power | 326 hp |
| Torque | 760 Nm |
| Cylinder block | cast iron V8 |
| Cylinder head | aluminum 32v |
| Cylinder diameter | 83 mm |
| Piston stroke | 95.5 mm |
| Compression ratio | 16.4 |
| Engine features | intercooler |
| Hydrocompensators | yes |
| Transmission timing | chain |
| Fasoregulator | no |
| Turbocharger | Garrett GTB1749LVK |
| What oil to use | 9.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | Euro 4 |
| Example service life | 350,000 km |
| Engine weight | 255 kg |
In 2003, the Audi A8 D3 debuted a 4.0-liter V-8 diesel engine. Its main difference was the chain drive timing and intake manifold with swirl flaps. However, this engine was produced only two years and gave way to an updated 4.2-liter engine. In addition to increasing the working volume, the manufacturer modernized the problematic chain timing, installed a new Common Rail Bosch fuel system with piezo injectors and other turbines.
Disadvantages, breakdowns and problems of the BTR
- This is a very reliable diesel and problems with it only occur at high mileage
- Modern fuel system with piezo injectors cannot tolerate left over fuel
- If you pour anything into the tank, you will soon face repairs costing up to 500,000 rubles
- Saving on lubrication here greatly reduces the life of turbines and hydrocompensators
- After 200 – 250 thousand km may require replacement of the timing chain, which is very expensive.
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