The exhaust manifold is integrated into the cylinder head, enabling the engine to warm up more quickly, in turn making heat available quickly for the passenger cabin. The cylinder-head circuit heats the cabin's interior. That means that a high temperature circuit with a mechanically driven cooling pump cools the basic engine, while a low temperature circuit flows through the intercooler and the turbo-charger casing. Regarding thermal management, the EA211 petrol engine is equipped with a modern dual-circuit cooling system. In addition the connecting rod bearing journals are now hollow-drilled and pistons now come with flat bottoms, all of them optimized for lower weight.
The crankshaft alone became lighter by 20 per cent the connecting rods lost 30 per cent of their weight. The weight of these petrol engines made of die-cast aluminium is only 97 kg (214 lb) for the 1.2 TSI and 106 kg (234 lb) for the 1.4 TSI. Just as in the diesels, the petrol engines are now mounted with the exhaust side facing backwards and tilted at an angle of 12 degrees. The installation position of the engines has also been optimised.
#PETROL PUMP MANAGEMENT SYSTEM SOURCE CODE SERIES#
Compared to its predecessor, the EA211 series is significantly more compact, with installation length 50 mm (2.0 in) shorter, thus offering more interior space. The EA211 engines are a completely new four-cylinder turbocharged and direct-injection TSI engines. In transverse mount configuration, the exhaust side is towards the vehicle firewall, in longitudinal configuration, the exhaust side is to the right as you face front in either left or right-hand drive vehicles. Other "V" belt-driven accessories are the alternator and (if fitted) power steering, and air-conditioning pump.
The camshaft is driven by a toothed belt from the crankshaft, this belt also provides the drive for an intermediate shaft that internally operates the oil pump, ignition distributor and coolant pump. This overhead camshaft engine features a crossflow cylinder head design. It is a series of water-cooled inline three- and inline four-cylinder petrol and diesel engines, in a variety of displacement sizes. The EA111 series of internal combustion engines was initially developed by Audi under Ludwig Kraus's leadership and introduced in 1974 in the Audi 50 and shortly after, in the original Volkswagen Polo. The petrol engines which Volkswagen Group previously manufactured and installed are in the list of discontinued Volkswagen Group petrol engines article.
For the turning force generated by the engine, the Newton metre (Nm) will be the reference figure of torque. In case of conflict, the metric power figure of kilowatts (kW) will be stated as the primary figure of reference. The standard initial measuring unit for establishing the rated motive power output is the kilowatt (kW) and in their official literature, the power rating may be published in either the kW, or the metric horsepower (often abbreviated "PS" for the German word Pferdestärke), or both, and may also include conversions to imperial units such as the horsepower (hp) or brake horsepower (bhp). Motor vehicle engines will have been tested by a Deutsches Institut für Normung (DIN) accredited testing facility, to either the original 80/1269/ EEC, or the later 1999/99/ EC standards. Since the Volkswagen Group is German, official internal combustion engine performance ratings are published using the International System of Units (commonly abbreviated "SI"), a modern form of the metric system of figures. The spark-ignition petrol engines listed below operate on the four-stroke cycle, and unless stated otherwise, use a wet sump lubrication system, and are water-cooled.
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