What engines were available in the W463 G-Class?

The W463 G-Class was available with the following engines: M113 5.0L V8 (G500, pre-2009), M273 5.5L V8 (G550, 2009-2015), M176 4.0L V8 Biturbo (G500/G550, 2019+), M157 5.5L V8 Biturbo (G63 AMG, 2012-2018), M177 4.0L V8 Biturbo (G63 AMG, 2019+), OM642 3.0L CDI V6 (G350d).

suv · 1990–present

W463

Q: How reliable is the Mercedes-Benz W463 G-Class?

The W463 G-Class (1990–present) has a reliability rating of "good" based on Beach Benz's 35 years of service experience. The G-Class is built like a tank and will last indefinitely with proper care. The pre-2019 solid front axle models need regular front end attention. We service G-Wagens from bone-stock daily drivers to heavily modified off-road builds. The 2019+ redesign is a massive improvement in on-road comfort.

Q: What is the maintenance schedule for the W463 G-Class?

Engine oil & filter change: Every 10,000 miles. Front and rear differential fluid (3 diffs): Every 30,000 miles. Transfer case fluid: Every 30,000 miles. Steering damper and front end inspection: Every 30,000 miles

G-Class

Reliability: Good

6 engines5 known issues

Overview

The W463 G-Class (Gelaendewagen) is the longest-running Mercedes-Benz model, originally designed as a military vehicle in 1979. The civilian W463 has evolved from a utilitarian off-roader to a luxury status symbol while retaining its three locking differentials and body-on-frame construction. The 2019 redesign modernized the platform significantly while maintaining the iconic silhouette. The G63 AMG has become one of the most recognizable vehicles in the world.

Engines & Transmissions

Engine Options

M113 5.0L V8 (G500, pre-2009)
M273 5.5L V8 (G550, 2009-2015)
M176 4.0L V8 Biturbo (G500/G550, 2019+)
M157 5.5L V8 Biturbo (G63 AMG, 2012-2018)
M177 4.0L V8 Biturbo (G63 AMG, 2019+)
OM642 3.0L CDI V6 (G350d)

Transmissions

722.6 5-speed automatic (pre-2019)
722.9 7G-Tronic (pre-2019)
9G-Tronic (725.0, 2019+)

Common Problems

Known issues reported across the W463 production run, ordered by severity. These are based on our direct experience servicing these vehicles over 35 years.

Front axle CV joint and steering knuckle seal leaks (pre-2019)

High severity

→

Differential lock actuator failure (all three diffs)

Medium severity

→

Steering damper wear causing death wobble at highway speeds (pre-2019)

High severity

→

Rear door hinge wear and alignment issues

Low severity

→

Rust in door bottoms and rear wheel housing (pre-2019 steel body)

Medium severity

→

Maintenance Highlights

Key service intervals for the W463. These are based on our recommended schedule for Southern California driving conditions, which may differ from factory-specified intervals.

Engine oil & filter change

Every 10,000 miles

Front and rear differential fluid (3 diffs)

Every 30,000 miles

Transfer case fluid

Every 30,000 miles

Steering damper and front end inspection

Every 30,000 miles

Reliability Assessment

Good Reliability

Based on 35 years of service data at Beach Benz

PoorFairGoodExcellent

Beach Benz Experience

From Our Technicians

“The G-Class is built like a tank and will last indefinitely with proper care. The pre-2019 solid front axle models need regular front end attention. We service G-Wagens from bone-stock daily drivers to heavily modified off-road builds. The 2019+ redesign is a massive improvement in on-road comfort.”

— Beach Benz service team · 35+ years of Mercedes-Benz specialization

W463 Specialist

Your W463 deserves a specialist.

Factory diagnostics. OEM parts. 35 years of Mercedes-Benz expertise. Whether it's a routine service or a complex repair, Beach Benz has your W463 G-Class covered.

Call (714) 842-9816 Call (714) 842-9816