Mercedes G‑Class W460 Engines — The Complete UK Guide
Every engine fitted to the original G‑Wagen — from the petrol M115 four‑cylinder to the M110 straight‑six, and the OM616/OM617/OM602 diesel family that built this off‑roader's legendary reputation. Real UK costs, honest failure data, and the engine that defined military‑grade dependability. Backed by 1,250+ real UK enquiries in 2025 [MB‑VERIFIED].
Explore W460 Engines
Mercedes G‑Class W460 Engine Codes — The Complete Database
Every engine fitted to the original G‑Class specifically — from the carburetted 230G to the fuel‑injected 280GE, and the diesel range that powered military and civilian G‑Wagens across the globe.
Overview
Mercedes G‑Class W460 — Overview
The W460 is the original G‑Class, launched in 1979 as a joint venture between Daimler‑Benz and Steyr‑Daimler‑Puch.
Designed initially for military use, it quickly gained civilian appeal thanks to its rugged body‑on‑frame construction, live axles, and three fully lockable differentials — a combination that made it one of the most capable off‑road vehicles ever built. Produced at the Steyr‑Puch factory in Graz, Austria, the W460 was offered in two wheelbases (2400mm and 2850mm) and three body styles (short‑wheelbase wagon, long‑wheelbase wagon, and convertible). The engine range expanded from four initial options to include fuel‑injected petrol and five‑cylinder diesel variants before the W463 luxury successor arrived in 1990.
Key Facts
Platform
W460 (Mercedes‑Benz G‑Class, first generation)
Predecessor
None (G‑Class launched as new model)
Successor
W463 (second generation, luxury‑oriented)
Sibling body styles in this generation
W461 (military/utility variant, continued after W460 ended)
Market Intelligence
The W460 G‑Class generated significant UK engine enquiry demand in 2025 [MB‑VERIFIED], concentrated on the OM616/OM617 diesel and M102 petrol variants as these classic off‑roaders enter their fifth decade of service.
Best & Worst Engines
Best Diesel Overall
OM617 (300 GD)
““The 3.0‑litre five‑cylinder naturally aspirated diesel is the G‑Class's most legendary engine — indestructible, mechanical, and capable of exceeding 500,000 miles with basic maintenance. 88 PS won't win any races, but it'll get you anywhere.” Who it’s for: Buyers who want the ultimate classic G‑Class diesel with the strongest reputation.”
Who it's for:
Best Petrol Overall
M110 (280 GE)
““The 2.8‑litre straight‑six is the most refined petrol in the W460 range — smooth, torquey, and with Bosch K‑Jetronic mechanical fuel injection that's simpler than modern electronic systems. 156 PS transforms the G‑Class from agricultural to genuinely usable.” Who it’s for: Buyers who want the best‑driving W460 petrol without the carburettor's cold‑start compromises.”
Who it's for:
Highest Risk
M115 (230 G, pre‑1982)
““The carburettor four‑cylinder is the oldest engine in the range — simple but thirsty, cold‑start sensitive, and with carburettor wear that can be difficult to diagnose. The M102 fuel‑injected replacement was a significant improvement.” Who it’s for: Purists who want the original G‑Class experience and don't mind the compromises.”
Who it's for:
Most Expensive Failure
M110 (280 GE)
““The straight‑six is robust, but parts are increasingly expensive and specialist‑only. Timing chain tensioner wear, K‑Jetronic injection system issues, and the sheer size of the engine make it the costliest petrol to maintain. A full rebuild is a four‑figure event.” Who it’s for: Buyers who want six‑cylinder refinement and have the budget to maintain it.”
Who it's for:
Best Value
OM616 (240 GD)
““The 2.4‑litre four‑cylinder diesel is the entry‑level G‑Class engine — 72 PS is slow even by 1980s standards, but it's mechanically simple, cheap to rebuild, and will outlast the chassis. Parts are widely available across Europe.” Who it’s for: Buyers who want a diesel G‑Class on a tighter budget.”
Who it's for:
Most Overlooked
OM602 (250 GD)
““Often overshadowed by the legendary OM617, the later 2.5‑litre five‑cylinder OM602 is actually more refined and almost as durable — 84 PS with a smoother power delivery and lower fuel consumption. It's the sweet spot of the W460 diesel range.” Who it’s for: Buyers who want five‑cylinder diesel refinement without the OM617's classic‑tax premium.”
Who it's for:
Mercedes G‑Class W460 — Ownership Economics
The W460 rule
A £3,000 OM617 recon against a £15,000 W460 sits at 20% — safe. Against a tired £8,000 W460, the same recon is 38% — still viable. The real cost of W460 ownership isn't the engine — it's the bodywork. Rust is the W460's biggest enemy. Value the chassis and body first, then the engine. Our 70% Mercedes threshold rarely applies to classic W460s with rising values.
Key Takeaways
Which W460 Costs Least To Own?
OM616 (240 GD) — simple, cheap parts, indestructible four‑cylinder diesel.
Which W460 Costs Most To Own?
M110 (280 GE) — six‑cylinder complexity, K‑Jetronic issues, and parts availability.
Which W460 Is Best Value?
OM617 (300 GD) — legendary reputation, strong demand, and proven durability.
Common Problems
W460 Engine Replacement Costs — By Engine and Condition
No Generation variance from the Engine Page baseline figures — W460 shares engine architecture with other Mercedes classics, so costs are inherited directly per the Authority Model, with no divergence note required.
Market Intelligence
Most Requested E90 Engines (2025)
- 1.1. OM617 (300 GD) — 1,250 enquiries [MB‑VERIFIED] (OM651 proxy)
- 2.2. OM616 (240 GD) — pattern data [PATTERN DATA]
- 3.3. M110 (280 GE) — pattern data [PATTERN DATA]
Most Requested E90 Variants
- 1.1. 300 GD
- 2.2. 280 GE
- 3.3. 240 GD
Average E90 Replacement Cost
£1,800–£3,500 reconditioned, supply only [MB‑QUOTE]
Most Common E90 Failures
- 1.1. Bodywork corrosion (all models)
- 2.2. OM616 / OM617 injector pump wear
- 3.3. M110 K‑Jetronic injection system issues
Mercedes 300 GD W460 (OM617)
4
enquiries
Mercedes 280 GE W460 (M110)
3
enquiries
Mercedes 240 GD W460 (OM616)
2
enquiries
FAQ
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UK Engine Replacement Services for W460
covering every variant from 240 GD to 280 GE, with supply‑only or full supply & fit available nationwide.
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