● Do not fill with more than the maximum refill quantity indicated on the instrument cluster display.
● Remove any spilled AdBlue® as quickly as possible with a damp cloth and plenty of water.
®
● Remove any crystallised AdBlue with water and a sponge.
Dispose of the refill bottle in an environmentally friendly
way.
When filling with an AdBlue® filler nozzle, you may notice an
odour.
Suitable AdBlue® refill bottles are available from a correspondingly qualified
workshop.
Particulate filter
Regeneration function
During regeneration of the particulate filter, the accumulated soot inside the particulate filter is burnt to ash so that it
does not become clogged. Regeneration takes place at periodic intervals at high temperatures. To achieve the high
temperatures in the particulate filter, additional diesel is injected into the engine where it is burnt in the diesel
oxidation catalytic converter to enable regeneration.
Depending on the driver’s driving profile and the load placed on the engine, the amount of diesel fuel injected is
continuously adjusted to maintain a high temperature in the particulate filter during regeneration. During post-
injection of diesel fuel, small amounts of fuel may enter the oil circuit of the engine. During regular driving, this fuel
evaporates again from the engine oil. If the engine oil temperatures are not high enough due to the driving profile or
if a lot of short distances are driven, the fuel cannot evaporate from the engine oil and oil dilution can occur.
An indicator light may light up in the instrument cluster display (→ Engine oil).
Automatic regeneration
The soot in the particulate filter is burnt off at high temperatures on a periodic basis.
Volkswagen Commercial Vehicles recommends that you avoid making only short journeys to assist the regeneration
of the particulate filter.
The radiator fan may run on while the vehicle is moving or when the engine has been switched off.
Regeneration is interrupted automatically when the vehicle is driven in the reserve range and the yellow indicator
lamp lights up.
NOTICE
Aborted regeneration and the associated oil dilution may damage the engine.
● Do not switch off the engine unnecessarily while the indicator lamp is active.
● Avoid frequent short-distance driving and driving cycles at permanently low engine speeds or stationary
operation.
Noises, slight smells and increased engine speeds may occur during
regeneration.
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