Fuel and exhaust purification -> Exhaust purification system for Your Volkswagen California Van Third Generation (2015-2024)

Or: Seek assistance from a suitably qualified workshop.  
You can expect engine faults and increased fuel consumption if the indicator lamp is lit  
up.  
Introduction  
Checklist  
The emission-relevant components reduce exhaust emissions. Observe the following points so that the emission-  
relevant components function for a long time:  
Never run the fuel tank completely empty.  
Refuel the vehicle only with fuels that are suitable for the vehicle (→ Identification of fuels).  
Use only engine oil that is suitable for the vehicle (→ Engine oil).  
Never overfill with engine oil (→ Engine oil).  
Do not tow-start the vehicle but perform jump starting instead (→ Jump starting).  
If misfires, loss of power or rough engine running occur while driving, reduce speed immediately and have the vehicle  
checked by a suitably qualified workshop. Otherwise uncombusted fuel could enter the exhaust system and thus be  
discharged into the atmosphere. In addition, emission-relevant components can also be damaged by overheating.  
WARNING  
Engine exhaust gases contain carbon monoxide, which can cause people to lose consciousness and also lead to  
death.  
Do not allow the engine to run in enclosed spaces.  
Never start the engine in enclosed spaces.  
Do not leave the vehicle unsupervised with the engine running.  
WARNING  
The components of the exhaust system become very hot. This can cause fires.  
Park the vehicle so that no part of the exhaust system can come into contact with any easily flammable material  
underneath the vehicle, e.g. dry grass.  
Never apply additional underseal or anti-corrosion coatings to the exhaust pipes, catalytic converters, particulate  
filters or heat shields.  
A sulphur-like exhaust gas smell can also occur even if the exhaust purification system is functioning  
properly.  
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AdBlue®  
Legal information  
®
No technical modifications which affect emission control by AdBlue may be made to the emission control system.  
®
Only operation with AdBlue that complies with ISO-22241-1 is approved by Volkswagen and corresponds to the  
Certificate of Conformity issued for this vehicle type.  
®
Operating the vehicle without AdBlue that complies with ISO-22241-1 may be a criminal offence.  
If the emission control system is not operated as intended, the exhaust emissions may become worse.  
®
Information on AdBlue  
The AdBlue® consumption figures depend on the driving style, the operating temperature and the ambient  
temperature.  
The expected AdBlue® consumption is 0.5 – 2.0 l/1,000 km and can vary and deviate depending on the driving style,  
the operating and ambient temperature.  
With some equipment levels, the remaining range and refill quantity can be checked on the instrument cluster  
display.  
Because AdBlue® freezes at temperatures below -11 °C(+13 °F), there may be limitations when filling at very low  
temperatures. While the vehicle is in motion, the system is heated to ensure effective emission control even at very  
low temperatures. During prolonged spells of cold weather with temperatures below -11°C (+13°F), and in extremely  
adverse conditions, it is possible that the AdBlue® cannot be defrosted and is not available for the emission control  
system.  
1. Stop the vehicle in a warm place.  
2. Wait until the AdBlue® becomes liquid again.  
3. If necessary, have refilling performed by a suitably qualified workshop.  
AdBlue® must be refilled independently of the service events. This may be necessary more frequently and between  
the service intervals.  
The AdBlue® tank must never run empty→  
.
Warning and prompting system with low fill level  
Always add AdBlue® when a prompt to add it appears in the instrument cluster display.  
AdBlue® in normal operating range. Remaining range of 2000 km or 2400 km(depending on equipment).  
AdBlue® can be added, but it is not necessary.  
As of a remaining range of 2,000 or 2,400 km(depending on equipment), the instrument cluster display will indicate  
that AdBlue® must be refilled. The respective remaining range at that time is indicated in this prompt.  
If this prompt is ignored, the yellow indicator lamp lights up from aremaining range of 1000 km. A message  
informing you that it will no longer be possible to restart the engine in XXX km appears in the instrument cluster  
display.  
It will no longer be possible to restart the engine if the yellow indicator lamp is still ignored and the displayed  
remaining range is 0 km. The red warning lamp lights up.  
Warning and prompting system in the event of faults  
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