VW/Audi 3.0 V6 TDI Engine Specs, Problems, Reliability. The 3.0 l V6 TDI engine was developed by Audi (a member of the Volkswagen Group) and presented in 2004 as the new engine in the Audi D3 A8. The 3.0 TDI engine excited adoration from clients and reporters who accentuated wonderful dynamic attributes. The new engine was set up later on in Volkswagen premium designs such as the Volkswagen Phaeton and Touareg.
This engine was developed from scratch and had absolutely nothing knowledgeable about the 2.5 V6 TDI. The 3.0 V6 TDI provides great performance and takes in considerably less fuel than the 2.5 TDI. The engine is constructed around the cylinder block, which has a 90 deg V angle and made from compressed graphite iron named CGI-450. This material offers a weight conserving of 5 – 10 % in comparison with gray cast iron. The forged, tempered steel crankshaft seats on four primary bearings in a gray cast iron bearing frame bolted into the crankcase. The engine has two cylinder heads made of aluminum alloy.
These heads have a cross-flow style, four valves per cylinder (two intake and two exhaust valves, 24 valves total,), 2 camshafts, and roller rocker fingers with hydraulic valve clearance payment. The exhaust camshafts are related to intake camshaft through a spur gear. The engine has a complex roller chains system of the intake camshafts drive. There are four simplex roller chains.
The intake manifolds are fitted with continuously variable swirl flaps. The swirl flaps are closed when the engine is idling and at low engine speeds, and are open when the engine is started, in limp-home mode and at full throttle. The engine geared up with one BorgWarner variable geometry turbocharger (VGT) with electric increase control and two parallel side-mounted intercoolers for better cooling and compact style.
The 3.0 l V6 TDI engine has Common Rail (CR) fuel injection system, piezo-controlled seven-hole injectors. All engines are fitted with water-cooled exhaust gas recirculation (EGR), catalytic converter and diesel particle filter (DPF) for low exhaust emissions. Bosch EDC16 electronic engine control unit manages the engine operation.
Most TDI representatives with the variety of cylinders more than 6, for example, 4.2 TDI or 6.0 TDI (other than V10), were obtained by increasing the variety of cylinders of the 3.0 V6 TDI engine.
VW/Audi 3.0 V6 TDI Engine Problems and Reliability
The technically advanced 3.0 TDI needs a great deal of effort and cash for any repair. Based on customer reports, regrettably, the 3.0 TDI V6 is practically not able to pass 200,000 miles without an overhaul. Often major problems start to appear after just 100,000 miles. The timing chain tensioner is the powerlessness of this engine. Its breakage causes grinding when the engine begins. The very first 3.0 TDI was geared up with piezoelectric injectors, which quickly went out of order. They offered a shortage of fuel provided to the cylinders. As a result, a lowered fuel mixture resulted in a boost in temperature level and a pistons burnout.
VW/Audi 3.0 V6 TDI Engine Specs
|Cylinder block material||Cast Iron|
|Cylinder head material||Aluminum|
|Fuel system||Common rail direct injection|
|Number of cylinders||6|
|Valves per cylinder||4|
|Bore, mm||83.0 (3.27 in)|
|Stroke, mm||91.4 (3,58 in)|
|Displacement, cc||2,967 cc (181.1 cu in)|
|Type of internal combustion engine||Four-stroke, turbocharged|
|Compression Ratio||17.0 : 1|
|Power, hp||204-245 hp /3,500-4,500|
|Torque, lb ft||332-406 lb-ft/1,400|
|Engine weight||483 lb (219 kg)|
|Engine oil weight||LongLife (QG0, QG2, QG3) – 505.01. LongLife (QG1) – 507.00. Oil 5W30 or 5W-40.|
|Engine oil capacity, liter||9 (with oil filter)|
|Oil change interval, mile||US: 10,000 (16,000 km)/12 months
Europian: 18,600 (30,000 km)/12 months
|Applications||Audi B7 A4, Audi B8 A4, Audi Q7, Audi C6 A6, Audi D3 A8, Volkswagen Phaeton, Volkswagen Touareg, Porsche Cayenne|
VW/Audi 3.0 V6 TDI Engine Modifications
- BKN – 204 hp (150 kW)/ 3,500 rpm; 332 pound feet (450Nm)/ 1,500 rpm. Audi A4 (B7) engine.
- BUN – 211 hp (155 kW) variation for Audi Q7 and Volkswagen Touareg.
- BMK – 224 hp (165 kW)/ 4,200 rpm; 369 pound ft (500Nm)/ 2,000 rpm. Application: Audi A6 (C6), Volkswagen Phaeton and Volkswagen Touareg by BKS id.
- DDXC – 224 hp (165 kW)/ 4,500 rpm; 406 pound feet (550Nm)/ 1,500 rpm. Volkswagen Amarok 3.0 TDI engine.
- ASB – 232 hp (171 kW)/ 4,000 rpm; 369 lb ft (500Nm)/ 1,500 rpm or 332 lb feet (450Nm)/ 1,400 rpm. You can find this version under a hood of Audi A8(D3), A6 (C6), A4 (B7). This engine likewise was set up in the Audi Q7 (BUG engine).
- CAP, CCW, CDY, CASA, CARA – 239 hp (176 kW)/ 4,000 rpm; 369 lb feet (500Nm)/ 1,500 rpm. Application: Audi A4 (B7, B8), Audi A5, Audi A6 (C6), Audi Q5, Audi Q7, Porsche Cayenne, Volkswagen Touareg.