| Engine oil & filter | MB 229.5 · 0W-40 or 5W-40 full synthetic · ≈8.0 L (8.5 qt) with filter | Then yearly or at the service indicator | Cartridge filter in a housing on top of the engine — use a 74 mm, 14-flute cap wrench. While it's open, look for weeping at the filter-housing gaskets.Liqui Moly 5W-40 oil change kit, 8 L + filter (G 500 2002–08) · FCP Euro ↗Mann oil filter kit HU 718/5 x (000 180 26 09) · FCP Euro ↗ |
| Air filters | Paired elements, one per bank | Now, then with every second oil change or sooner on dirt roads | Check the airbox for leaves and rodent nests on a truck that sat.Hengst air filter set 273 094 04 04 (supersedes 112 094 06 04; M112/M113) · FCP Euro ↗ |
| Cabin filter | Mahle/OE 463 830 00 18 | Now, then yearly | A clogged filter on a G is often wet too — check for sunroof-drain water while you're in there.Mahle cabin air filter 463 830 00 18 · FCP Euro ↗ |
| Spark plugs, wires & coils | 16 plugs (M113 runs two per cylinder) · Bosch FR8DPP33 | Now if no record; then per the maintenance booklet confirm in manual | Oil in the plug wells means valve-cover gaskets — fix those first, then fit plugs, wires and any oil-soaked coil boots.Bosch FR8DPP33 spark plugs, set of 16 · FCP Euro ↗Bremi ignition wire set 112 150 00 · FCP Euro ↗Genuine Mercedes ignition coil 000 158 78 03 · FCP Euro ↗ |
| Coolant & thermostat | MB 325.0-approved coolant (blue) mixed 50/50 with distilled water · ≈12.7 US qt (≈12 L) per AMSOIL confirm in manual | Now if history is unknown | Bleed carefully; replace the thermostat and any soft or swollen hoses while the system is drained.M112/M113 thermostat kit (Borg Warner) · FCP Euro ↗ |
| Automatic transmission (722.6) | MB 236.14 ATF · ≈9 qt total fill per AMSOIL (a pan drain replaces only part of it) | Service now if history is unknown; then every 40,000–60,000 mi (common technician practice) | Drop the pan, fit a new filter and gasket, and replace the 13-pin connector sleeve — ATF wicking through it ruins harnesses. Set the level hot, on level ground, with the 722.6 dipstick tool. US trucks built from 2007 have the seven-speed 722.9 instead — check the tag and use the fluid and procedure for that gearbox.FUCHS 722.6 ATF service kit (fluid, filter, gasket) · FCP Euro ↗FUCHS 722.6 13-pin connector service kit · FCP Euro ↗ |
| Transfer case | Check the tag: many W463 cases take MB 236.14 ATF; earlier cases ran GL-4 gear oil confirm in manual | Now, then every 60,000 mi (MB interval quoted by owners) | Fill plug on the front right, drain plug underneath with a small magnet; both are 14 mm hex. Inspect the propshaft flex discs (in pairs) and the centre support bearing while you're under it.FUCHS ATF 4134 (MB 236.14), 1 L · FCP Euro ↗Genuine Mercedes transfer case input shaft seal 015 997 08 47 · FCP Euro ↗ |
| Front & rear differentials | GL-5 hypoid gear oil (MB 235.0, 85W-90; synthetic 75W-90 is common) · front ≈1.4 L (3 pt), rear ≈1.8 L (3.8 pt) per AMSOIL confirm in manual | Now, then with the transfer case | Crack the upper fill plug before you pull the drain (14 mm hex; owners torque the drain to 60 Nm). Afterwards test each lock one at a time on loose ground — the dash lamp should go from flashing to solid.Liqui Moly 75W-90 synthetic hypoid gear oil (1 L) · FCP Euro ↗Genuine Mercedes differential drain plug 901 997 05 35 · FCP Euro ↗ |
| Front knuckles, wheel bearings & CV boots | Repack knuckles and wheel bearings; replace torn boots | If there's no record; Europa's own interval was every 40,000 mi | Bearing preload is set with a dial indicator — use the factory procedure or a G-experienced shop. Replace the front axle seals at the same time.Genuine Mercedes front wheel bearing, outer 009 981 48 05 · FCP Euro ↗Genuine Mercedes front wheel seal 463 334 01 59 · FCP Euro ↗Genuine Mercedes front CV joint boot 460 337 04 85 (2002–04) · FCP Euro ↗Genuine Mercedes front axle shaft seal 009 997 28 47 · FCP Euro ↗ |
| Power steering fluid | MB power-steering fluid · ≈1 L system | Now (suction-and-refill if you can't flush) | Check the box and hoses for weeps while you're there; the steering damper is a 1-hour job if the front end wanders.Febi power steering fluid (MB 000 989 88 03) · FCP Euro ↗ |
| Brake fluid | DOT 4 Plus (MB sheet 331.0) | Now, then every 2 years | Owners bleed the hydraulic diff-lock lines with the same fluid when they do the brakes confirm in manual.Genuine Mercedes DOT 4 Plus brake fluid, 1 L · FCP Euro ↗ |
| Drive belt & tensioner | Single poly-V belt with automatic tensioner | Replace now if age unknown | Spin the idlers and watch the crank pulley for wobble — a separating harmonic balancer takes the belt with it.Genuine Mercedes serpentine belt 014 997 71 92 · FCP Euro ↗INA belt tensioner 112 200 09 70 (2002–04) · FCP Euro ↗ |
| Fuel filter | Inline filter 002 477 30 01 | Now if no record confirm in manual | Depressurise the system first and catch the fuel; fit new clamps.Mann fuel filter 002 477 30 01 (M112/M113) · FCP Euro ↗ |
| Battery | Group 49 AGM | Test now; replace if over 4–5 years old | Weak voltage on these trucks shows up as random electrical faults and lock-switch oddities before it shows up as slow cranking.Bosch S6 AGM Group 49 battery · FCP Euro ↗ |