1998-2005 Volkswagen Lupo 2 Door Descriptions of work -> Camshaft drive toothed belt: Checking (4-cylinder petrol engine) User Manual
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Descriptions of work -> Camshaft drive toothed belt: Checking (4-cylinder petrol engine) for Your Volkswagen Lupo 2 Door First Generation (1998-2005)

Lupo 1999 ➤ , Lupo 3L 1999 ➤  
Maintenance - Edition 03.2018  
– Pull out oil dipstick -1- and remove oil filler cap -2-.  
– Unclip engine cover and remove upwards.  
– Open clips -1- on upper toothed belt guard.  
– Unhook toothed belt guard -2- and pull to side.  
– Measure the width of toothed belt with a workshop vernier cal‐  
iper - VAS 5276- .  
Wear limit: 27 mm  
Note  
When a toothed belt has reached a width of 27 mm, the wear limit  
has been reached and it must be renewed (repair measure). In‐  
form customer!  
WARNING  
The engine must never under any circumstances be turned  
over using the camshaft when checking and making adjust‐  
ments. Not observing this can lead to severe engine damage.  
4.27  
Camshaft drive toothed belt: Checking  
(4-cylinder petrol engine)  
Toothed belt: checking condition  
– Open clips for upper toothed belt guard and remove cover.  
– Check condition of toothed belt for:  
♦ Cracks, cross sectional breaks  
♦ Layer separation (toothed belt body, tensile cords)  
♦ Toothed belt body breakup  
♦ Frayed cord strands  
♦ Surface cracks (synthetic coating)  
♦ Traces of oil and grease  
78  
4. Descriptions of work:  
Lupo 1999 ➤ , Lupo 3L 1999 ➤  
Maintenance - Edition 03.2018  
Note  
If faults are found, always renew toothed belt. This can avoid  
breakdowns and malfunctions. The replacement of a toothed belt  
is a repair measure.  
When checking condition, especially watch for following damage:  
-A- Cracks (coating)  
-B- Side contact  
-C- Fraying  
-D- Cracks (in teeth base)  
4.28  
Toothed belt: Renewing (diesel engine  
with engine code AKU)  
Note  
Generally it is not necessary to renew the toothed belt before the  
actual change interval is reached. Especially cracks on the belt  
side are not relevant for service life and cannot be covered by  
goodwill or warranty processing.  
– Carry out procedure: »Engine mechanics; Crankshaft« ⇒ En‐  
gine mechanics; Crankshaft; Rep. gr. 13 ; Removing and  
installing toothed belt »Removing and installing toothed belt«  
4.29  
Toothed belt and camshaft drive ten‐  
sioning roller: Renewing (diesel engine  
with engine codes AMF, ANY and AYZ)  
Note  
Generally it is not necessary to renew the toothed belt before the  
actual change interval is reached. Especially cracks on the belt  
side are not relevant for service life and cannot be covered by  
goodwill or warranty processing.  
– Carry out procedure:»Engine mechanics; Cylinder head, valve  
gear« ⇒ Engine mechanics; Cylinder head, valve gear; Rep.  
gr. 15 ; Removing and installing toothed belt »Removing and  
installing toothed belt«  
4.30  
Engine oil: Draining or extracting and re‐  
plenishing; renewing oil filter  
Special tools and workshop equipment required  
4. Descriptions of work:  
79  

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