Checking and refilling levels
186Topping up engine oil 
 
Top up gradually with small quantities of oil.
Before opening the bonnet, read and observe the warnings  ⇒ in 
“Safety instructions on working in the engine compartment” on 
page 180.
– Unscrew cap from oil filler opening ⇒ fig. 128.
– Top-up oil in small amounts, using the correct oil.
– To avoid over-filling with engine oil, you should top-up using  small quantities, wait a while and check the oil level before 
adding any more oil.
– As soon as the oil level is in area  , carefully close the cap.The position of the oil filler openi ng is shown in the corresponding engine 
compartment diagram ⇒ page 242. Engine oil specification 
⇒page 183.
WARNING
Oil is highly inflammable! Ensure that no oil comes into contact with hot 
engine components when topping up.
Caution
If the oil level is above the area   do  not start the engine. This could result 
in damage to the engine and catalytic converter. Contact a qualified work-
shop.
For the sake of the environment
The oil level must never be above area  . Otherwise oil can be drawn in 
through the crankcase breather and escape into the atmosphere via the 
exhaust system.Changing engine oil
The engine oil must be changed at the intervals given in the 
service schedule.We recommend that you have the engine oil changed by an Authorised 
Service Centre.
The oil change intervals are shown in the Maintenance Programme.
WARNING
Only change the oil yourself if you have the specialist knowledge required!
Fig. 128  In the engine 
compartment: Engine oil 
filler cap
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