| Engine oil & filter | MB sheet 229-approved oil · capacity confirm in manual | Now, then yearly | M117 5.0 V8. Change it before any long drive on a stored car, and check for leaks once warm. |
| Air filter | M117 element confirm in manual | Now | Check the airbox for nests on a stored truck. |
| Spark plugs & ignition | 8 plugs (one per cylinder) confirm in manual | Now if no record | Inspect the leads, cap and rotor if fitted. |
| Coolant & hoses | MB 325.0-approved coolant, 50/50 with distilled water · capacity confirm in manual | Now | Replace any hard or swollen hoses; a stored car's hoses age faster than its odometer suggests. |
| Automatic transmission (4-speed) | ATF to the MB 236.x sheet for this gearbox confirm in manual | Now | Drain-and-fill with a new filter and pan gasket; check the shift quality cold and hot afterwards. |
| Transfer case | GL-4 gear oil on period W463 cases · ≈3 qt (1997 G 320 owner) confirm in manual | Now, then every 60,000 mi (MB interval quoted by owners) | Fill plug on the front right, drain underneath (14 mm hex). Don't fill it with GL-5 diff oil. |
| Front & rear differentials | GL-5 hypoid gear oil (MB 235.0, 85W-90) · front ≈1.4 L, rear ≈1.8 L (W463 owner data) confirm in manual | Now | The 500 GE has centre and rear locks only — test both on loose ground afterwards.Red Line 75W-90 GL-5 gear oil (1 qt) · FCP Euro ↗ |
| Front knuckles, swivels & wheel bearings | Repack knuckles and bearings; grease the swivel balls | If no record; Europa's interval was 40,000 mi | Bearing clearance is set with a dial indicator — use the factory procedure or a G specialist. Owners report much lighter steering after re-greasing the swivels.Genuine Mercedes front wheel bearing, outer 009 981 48 05 — listed for 2002+ W463; confirm fit by VIN · FCP Euro ↗Genuine Mercedes front wheel seal 463 334 01 59 — listed for 2002+ W463; confirm fit by VIN · FCP Euro ↗ |
| Power steering fluid | MB power-steering fluid | Now | Febi power steering fluid (MB 000 989 88 03) · FCP Euro ↗ |
| Brake fluid & lock hydraulics | DOT 4 Plus (MB sheet 331.0) | Now, then every 2 years | Stored cars collect moisture in the fluid; flush and bleed every circuit.Genuine Mercedes DOT 4 Plus brake fluid, 1 L · FCP Euro ↗ |
| Fuel pumps, accumulator & filter | Pumps, accumulator and filter replaced together | Now on any stored truck | Both documented 500 GEs cited on this page had this done during recommissioning. Check the tank and lines for varnish.Mercedes electric fuel pumps (search; match the number on the old pump) · FCP Euro ↗Mercedes fuel accumulators (search; match the number on the old unit) · FCP Euro ↗ |
| Vacuum system & lock test | Vacuum reservoir, hoses and switchover valves | Now | Smoke-test or tee in a gauge; replace perished rubber with vacuum-rated hose, not fuel line.Lisle 20300 vacuum gauge / pump tester · FCP Euro ↗ |