Mercedes-AMG G63: performance, engines and what owners say

How fast is the W463 G63?

SUV, 2003–2012. 0–60 times are magazine tests where we have one, otherwise the maker's figure.

The engine: Mercedes-AMG M113K

5.4-liter V8, supercharged

Output469–500 hp, 516 lb-ft

SuperchargerHelical, 11.6 psi, liquid-to-air intercooler

ValvetrainSOHC, 3 valves and 2 spark plugs per cylinder

2003–2004Same 5.4 without the supercharger, 349 hp

Engine's YouTube owner tone 44/100 · #3 of 3 G63 engines (videos about the Mercedes-AMG M113K in every car that uses it, so it differs from this car's own tone below)

Mercedes-AMG M113K engine page →

Why the engine page shows fewer: it counts only the 380 owner complaints and 0 recalls for 2003–2012 that name this engine or a version that only had it. This page counts all 0 complaints and 0 recall campaigns NHTSA files under "G63" for those years, other engines included.

Known issues

• Intercooler pump failureEnthusiast outlet

  The pump that cools the supercharger's intercooler fails often. Intake air heats up and the engine cuts boost.

  Fix: Replace it with the updated Bosch 010 pump.

• Supercharger couplerParts seller

  The plastic coupler that drives the supercharger can crack and break, usually around 80,000–120,000 miles, causing a sudden loss of boost.

  Fix: Replace it with a billet aluminum coupler.

• Oil leaksEnthusiast outlet

  The rear main seal and valve cover gaskets harden with age and leak.

  Fix: Replace the rear main seal before the leak gets bad.

What owners say on YouTube

Share of the 190 most-watched W463 G63 videos that praise or criticize each topic (a praise or trouble word near it in the title or transcript).

Most-watched videos

Mercedes G63 AMG 6x6 Review | Top Gear | Series 21Top Gear · 36.7M views

Should you buy a W463 G63?

• YouTube likes the 2012 best (55/100).
• Repair costs: we don't have owner-reported repair costs for the G63 yet.

How fast is the W463 G63?

SUV, 2013–2018. 0–60 times are magazine tests where we have one, otherwise the maker's figure.

The engine: Mercedes-AMG M157

5.5-liter V8, twin-turbo

Redline6,400 rpm

Output536–563 hp, up to 561 lb-ft

Bore x stroke98.0 x 90.5 mm, 5,461 cc

FuelDirect injection, 10.0:1 compression

Engine's YouTube owner tone 45/100 · #2 of 3 G63 engines (videos about the Mercedes-AMG M157 in every car that uses it, so it differs from this car's own tone below)

Mercedes-AMG M157 engine page →

Why the engine page shows fewer: it counts only the 54 owner complaints and 0 recalls for 2013–2018 that name this engine or a version that only had it. This page counts all 12 complaints and 0 recall campaigns NHTSA files under "G63" for those years, other engines included.

Known issues

• Spark plug wearEnthusiast outlet

  The twin turbos wear spark plugs quickly, causing misfires and rough idle.

  Fix: Replace all eight plugs about every 40,000–50,000 miles.

  1 owner complaint to NHTSA mentions it (2013–2018)
• Valve timing cover leakEnthusiast outlet

  Oil or coolant can leak from a drain hole on the front valve timing cover when it isn't seated right.

  Fix: Reseal the cover following Mercedes' service bulletin.

  1 owner complaint to NHTSA mentions it (2013–2018)
• Coolant hose leaksEnthusiast outlet

  Coolant hoses split, crack or pop loose with age, which can overheat the engine quickly.

  Fix: Replace the leaking hose and check the ones next to it.

What owners say on YouTube

Share of the 190 most-watched W463 G63 videos that praise or criticize each topic (a praise or trouble word near it in the title or transcript).

Most-watched videos

Mercedes G63 AMG 6x6 Review | Top Gear | Series 21Top Gear · 36.7M views2014 Mercedes-Benz G63 AMG 6X6 vs 2014 Mercedes-Benz G63 AMG! Head 2 Head Ep. 46MotorTrend Channel · 5.5M views2013 Range Rover vs. 2013 Mercedes-Benz G63 AMG! - Head 2 Head Episode 32MotorTrend Channel · 5.4M views

Should you buy a W463 G63?

• New, the G63 AMG cost $135,205 (2013, destination included; from road tests, not a maker price list).
• YouTube likes the 2017 best (62/100).
• Budget for spark plug wear: 1 owner complaint mentions it. Replace all eight plugs about every 40,000–50,000 miles.
• Budget for valve timing cover leak: 1 owner complaint mentions it. Reseal the cover following Mercedes' service bulletin.
• Repair costs: we don't have owner-reported repair costs for the G63 yet.