538 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for their 
suitability in our engines and durability for 
our service intervals. Therefore, only use 
approved engine oils and oil filters 
required for vehicles with Maintenance 
System. For a listing of approved engine 
oils and oil filters, refer to the Factory 
Approved Service Products pamphlet (USA 
only), or contact an authorized 
Mercedes-Benz Light Truck Center.Engine oil additives
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG 
lubricating oil are used in the air condition-
ing system.
ModelCapacityFuels, coolants, lubricants, etc.
Air conditioning systemR-134a refrigerant and special PAG lubricant 
oil (never R-12)
Windshield washer 
system and headlamp 
cleaning system*8.0 US qt (7.6 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing point or MB Windshield Washer Concentrate “MB SummerFit” 
and commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 544).
!Using engine oils and oil filters of 
specification other than those expressly 
required for the Maintenance System, or chang-
ing of oil and oil filter at change intervals longer 
than those called for by the Maintenance System 
will result in engine or emission control system 
damage not covered by the Mercedes-Benz 
Limited Warranty.
Please follow Maintenance System recommen-
dations for scheduled oil changes. Failure to do 
so will result in engine or emission control 
system damage not covered by the 
Mercedes-Benz Limited Warranty.
!Do not blend oil additives with engine oil. 
They may damage the engine.
Damage or malfunctions resulting from blending 
oil additives are not covered by the 
Mercedes-Benz Limited Warranty.
!Never use R-12 (CFC) or mineral-based 
lubricating oil. Otherwise damage to the system 
will occur.