6.0 WR12 48v This
W12 badged
W12 engine is twelve cylinder
W engine of two rows of (staggered) 6 cylinders, formed by joining two imaginary 15°
VR6 engine ('shortened inline-engine') cylinder blocks, placed on a single crankshaft, with each cylinder 'double-bank' now at a 72° angle. This
Volkswagen Group engine is also used with slight modification, and with the addition of two
turbochargers in the
Bentley Continental Flying Spur. It has also been used in a form aboard the
Volkswagen W12 prototype sports car to establish a 24-hour record of in 2002 at the
Nardò Ring in
Italy. ;Identification: Parts code prefix: 07C: ;Engine displacement & engine configuration: 72°
W12 engine; bore x stroke: , stroke ratio: 0.93:1 – undersquare/long-stroke, 499.9 cc per cylinder, compression ratio: 10.7:1: 72°
W12 engine; bore x stroke: , stroke ratio: 0.93:1 – undersquare/long-stroke, 496 cc per cylinder, compression ratio: 10.7:1: ;Cylinder block & crankcase: Homogeneous
monoblock low-pressure chill die cast
hypereutectic '
Alusil'
aluminium-
silicon alloy (AlSi17Cu4Mg); torsionally stiff aluminium alloy crankcase with high-resistance
cylinder liners, simplex roller chain driven oil pump; die-forged steel 21.2 kg crankshaft, seven main bearings, crankpins offset to achieve a constant firing order as on a V6 engine: ;Cylinder heads & valvetrain: Cast aluminium alloy; four valves per cylinder, 48 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, double overhead camshaft driven from the flywheel side via a two-stage chain drive utilising three 3/8" simplex roller chains, continuous vane-adjustable
variable valve timing for intake and exhaust camshafts with up to 52 degrees timing range for the flow-optimised inlet ports, 22 degrees on the exhaust camshafts: ;Aspiration: Two air filters, two hot-film
air mass meters, two
throttle bodies each with
electronically controlled Bosch 'E-Gas'
throttle valves, four-part two-channel cast
magnesium alloy
intake manifold;
Bentley versions also use
twin-turbos – one
turbocharger per VR cylinder bank: ;Fuel system, ignition system, engine management: Two linked
common rail fuel distributor rails,
multi-point electronic sequential
indirect fuel injection with twelve intake manifold-sited fuel injectors; centrally positioned
NGK longlife spark plugs, mapped direct ignition with 12 individual direct-acting
single spark coils;
Bosch Motronic ME 7.1.1 electronic
engine control unit (ECU), cylinder-selective
knock control via four knock sensors, permanent
lambda control, water-cooled
alternator: ;Exhaust system: Two vacuum-controlled
secondary air injection pumps for direct injection into exhaust ports to assist cold start operation, four exhaust manifolds with four integrated ceramic
catalytic converters, eight heated
oxygen sensors monitoring pre- and post catalyst exhaust gases: ;Dimensions: Length: : Height: : Width: , then ;DIN-rated motive power & torque outputs – Audi / Volkswagen, ID codes :; —
Audi A8: AZC (01/01-09/02)
, VW Phaeton: BAN (04/02-05/05) : at 6,200 rpm, at 4,000 rpm, at 2,300–5,300 rpm —
Audi A8: BHT, BSB, BTE (12/03-07/10) : at 6,000 rpm; at 2,750–5,000 rpm —
Phaeton: BRN, BTT (05/05-03/16) : at 6,000 rpm; at 3,300 rpm —
Touareg: BJN, CFRA (08/04-05/10) : ;DIN-rated motive power & torque outputs – Bentley twin turbo : at 6,100 rpm; at 1,600–6,100 rpm —
standard models: BWR, BEB, MTBHT : at 6,000 rpm; at 1,700–5,600 rpm —
"Speed" models: CKHC, BWRA : at 5,900 rpm; at 2,050–4,500 rpm —
"Supersports" model : ;Applications (5998cc):
Audi A8 (AZC: 03/01-09/02, BHT: 02/04-, BSB: 10/04-, BTE: 02/05-),
Volkswagen Phaeton (BAN: 05/02-05/05, BRN: 05/05-10/08, BTT: 05/05-10/08),
Volkswagen Touareg sport (BJN: 08/04-, CFRA: 02/08-),
Bentley Continental GT,
Bentley Continental Flying Spur:
Applications (5952cc) :
Bentley Continental GT,
Bentley Continental Flying Spur,
Bentley Bentayga 6.0 WR12 48v TFSI This engine produces of power and of torque. It would mostly share the same technical specifications with its turbocharged 6.0-liter predecessor, other than the fact that it was modified to meet new WLTP emission standards. This new engine was promised to be made available on the
fourth generation A8, following
S8 and 60 TFSI/TDI models. However, as of August 2020, only examples of the W12 variant were press cars. It is rumoured that the W12 variant is only available as special orders in selected European dealerships.
6.3 WR12 48v FSI (CEJA) This engine produces of power and of torque. This new engine was made available on the
3rd generation A8. It had more compact dimensions than a comparable V8 engine FSI direct injection with twin high-pressure fuel pumps, twin fuel rails, and six-port high-pressure injectors. ;Applications :
A8 L W12 6.3 FSI quattro (CEJA) ==Applications==