Car engine repair Volkswagen Polo 4

Gasoline engine with a displacement of 1.2 liters
The 3-cylinder petrol engine with a displacement of 1.2 liters is available in two versions with different outputs, namely: with a power of 40 kW (55 hp) and 47 kW (64 hp). The...

Engine timing gear
AZQ 1.2L petrol engine, 47kW (64 hp); AXU direct injection petrol engine with a displacement of 1.4 liters and a power of 63 kW (86 hp) 1 - cylinder head with camshaft housing Do...

Cylinder head of AZQ gasoline engine with a displacement of 1.2 liters and a power of 47 kW (64 hp)
Removal instructions: Attention: The instructions for removal and installation apply to both engines with a displacement of 1.2 liters. Remove the engine together with the...

Cylinder Head — AWY 1.2L 40kW Gasoline Engine (55 hp)
1 - cylinder head cover Do not treat the sealing surface. The camshaft bearings are integrated. Apply sealant AMV 188 001 02 from VW before installation. When installing...

1.4 liter petrol engine, 55/74 kW (75/100 hp)
The AUA/BBY/AUB/BBZ 4-cylinder 1.4L petrol engine has an aluminum alloy cylinder block and cylinder head. Located in the crankcase above the cylinder head, camshafts actuate four...

Toothed belt drive for petrol engine AUA/BBY/AUB/BBZ with a displacement of 1.4 liters and a power of 55/74 kW (75/100 hp)
1 — the top casing of a gear belt 2 - bolt, 20 Nm + 90° (¼ turn) in tightening direction Always replace the bolt with a new one. Loosening and tightening requires VW-T1001 B. 3 -...

Setting the engine crankshaft to the ignition TDC position for cylinder 1
AUA/BBY/AUB/BBZ 1.4L petrol engine, 55/74kW Remove air filter housing . Remove upper toothed belt cover. Turn the crankshaft in the direction of its rotation, i.e. clockwise,...

Timing Belt Installation Instructions for AUA/BBY/AUB/BBZ 1.4L 55/74kW Petrol Engines
Attention: Removal and installation of a toothed belt for a gasoline engine with a displacement of 1.4 liters with a power of 55/74 kW (75/100 hp) are not described. Only the most...

Cylinder head for AUA/BBY/AUB/BBZ petrol engine with a displacement of 1.4 liters and a power of 55/74 kW (75/100 hp)
1 — the top casing of a gear belt 2 - main toothed belt 3 - connecting toothed belt 4 — bolt, 10 Nm + 90° (¼ turn) in tightening direction Always replace the bolt with a new one....

AXU 1.4L petrol engine with direct fuel injection
The camshafts are driven on the petrol engine with direct injection, like on the 1.2l engine, by a maintenance-free chain, see also drawing N13-0758 . The intake and exhaust...

Diesel engine with a displacement of 1.4 liters
The three-cylinder block of the 1.4-I-PD-TDI diesel engine is cast in gray cast iron. PD - Pumpe-Diise-Einspritzszstem - injection system with pump nozzles; TDI -...

Diesel engine with a displacement of 1.9 liters
A camshaft mounted on the cylinder head drives 8 vertical valves via hydraulic poppet lifters. The camshaft is driven by a toothed belt from the crankshaft of the engine....

Timing belt drive diesel engine ASY with a displacement of 1.9 liters and a power of 47 kW (64 hp)
1 - bolt, 45 Nm 2 - engine bracket 3 — the top casing of a gear belt 4 - toothed belt If the belt is to be installed again, mark the direction of travel on the belt before...

Removal and installation of a gear belt (SDI engine)
ASY diesel engine with a displacement of 1.9 liters and a power of 47 kW (64 hp) Removing Remove the engine top cover. Remove poly V-belt . Remove upper toothed belt cover. Remove...

Cylinder head (SDI engine)
ASY diesel engine with a displacement of 1.9 liters and a power of 47 kW (64 hp) 1 - cylinder head gasket Always replace. After replacement, change all coolant. Gaskets are...

Toothed belt drive (PD-TDI engine)
Diesel engine ATD / AXR / ASZ with a displacement of 1.9 liters with a power of 74/96 kW (100/130 hp) 1 — the top casing of a gear belt 2 - toothed belt Mark the direction of...

Removal and installation of a gear belt (PD-TDI engine)
Diesel engine AMF / BAY / ATD / AXR / ASZ with a displacement of 1.4- / 1.9 liters Removing Remove the engine top cover. Remove connecting pipe between charge air cooler and...

Cylinder head cover/cylinder head (PD-TDI engine)
ATD/ AXR/ASZ 1.9L diesel engine, 74/96 kW (100/130 hp) Installing the cylinder head cover Before fitting the cylinder head cover, apply a drop of sealant to both edges of the...

Removal and installation of the V-ribbed belt of a gasoline engine AWY / AZQ with a displacement of 1.2 liters
1 - bolts, 20 Nm 2 - coolant pump pulley 3 - cover 4 - tension element 5 — bolt, 20 Nm + 90° (1/4 turn) in tightening direction 6 - generator 7 - guide roller 8 - washer 9 -...

AUA/AUB/BBY/BBZ/AXU 1.4L petrol engine
Removing Remove poly V-belt cover. Not with FSI engine: Use a 16 mm wrench to turn the tensioning roller clockwise -arrows- on the fastening bolt. FSI engine: Use a 16 mm wrench...

Diesel engine with a displacement of 1.4 liters: removal and installation
Removing Remove the lower engine compartment cover. Remove connecting pipe from intake manifold/charge air cooler and mass air flow meter. Loosen poly V-belt tension. To do this,...

Diesel engine with a displacement of 1.9 liters: removal and installation
Removing Remove the lower engine compartment cover. ATD/AXR/ASZ engine (100/130 hp): remove front trim right wheel arch . If there is no air conditioning compressor: Loosen poly...

Engine start
All engines Engine with manual transmission: apply the handbrake, disengage and hold the clutch disengaged, shift the transmission to neutral. Disengaging the clutch, especially...

Engine Troubleshooting
Gasoline engine: when the engine does not start, a systematic approach is needed to identify the malfunction. In general, in order for a gasoline engine to start, 2 main...

Oil pressure control values

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