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Table of Contents > Descriptions of work > Poly V-belt: check condition

VW Passat B7 Service Manual ➜ Poly V-belt: check condition

Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
4.24  
Interior and exterior body: inspecting for  
corrosion with doors and flaps open  
Test locations  
♦ Sliding roof frame  
♦ Inner and outer door frame  
♦ Area around trim strips  
♦ Windscreen roof edge  
♦ Outer and inner A-pillar  
♦ Bonnet  
♦ Wheel arches  
♦ Inner and outer tailgate  
4.25  
Poly V-belt: renewing  
Procedure  
⇒ Rep. gr. 13 ; Cylinder block belt pulley end; Removing and  
installing poly V-belt  
Note  
For technical reasons it is possible that several cross references  
are not directed to the correct chapter. In this case select the pro‐  
cedure manually in the information.  
4.26  
Poly V-belt: check condition  
Carry out following procedure:  
– Remove “bottom” engine compartment cover (noise insula‐  
tion) ⇒ page 109 .  
– Use a suitable socket to turn the engine at the vibration damp‐  
er/belt pulley.  
4. Descriptions of work:  
93  
Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
Check poly V-belt -1- for:  
♦ Sub-surface cracks (cracks, core ruptures, cross sectional  
breaks)  
♦ Layer separation (top layer, cord strands)  
♦ Base break-up  
♦ Frayed cord strands  
♦ Flank wear (material wear, frayed flanks, flank brittleness -  
glassy flanks-, surface cracks)  
Caution  
If faults are found, it is absolutely necessary to renew the  
poly V-belt.  
In the case of diesel engines, toothed belts which came  
into contact with oil, brake fluid, fuel or reducing agent,  
must always be renewed.  
In the case of petrol engines, toothed belts which came  
into contact with oil, brake fluid, fuel or coolant, must al‐  
ways be renewed.  
This can avoid breakdowns and malfunctions.  
The replacement of a poly V-belt is a repair measure.  
94  
4. Descriptions of work:  

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