Fuel injection amount learning process (diesel-powered vehicles)
To keep exhaust emissions and engine noise low, the engine very occasionally performs a learning process for the fuel injection amount.
The engine sounds slightly different from usual while the learning process is taking place. The change in the engine sound does not indicate a fault.
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Maintenance
Adequate care of your vehicle at regular intervals serves to preserve the value
and appearance as long as possible.
Some maintenance items can be carried out by the owner (do it yourself), while
...
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During a long period of disuse
The air conditioning should be operated for at least five minutes each week,
even in cold weather. This is to prevent poor lubrication of the compressor internal
parts, and to maintain the air con ...
