3 Worst & 4 Best AMG Mercedes Models You Can't Afford To Miss
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Thinking of buying a used Mercedes-AMG AFTER WARRANTY? Buying the WRONG one is Financial SUICIDE. We EXPOSE the 3 WORST mercedes amg problems to avoid and the 4 best amg to buy in the 2026 used car market — by engine code, not just badge.
If you're asking are mercedes reliable after warranty, this buyer's guide ranks real repair costs and which mercedes benz AMG engines will drain your wallet vs. build stealth wealth.
THE 3 WORST AMG MODELS TO AVOID:
Worst #3: 2014-2019 Mercedes-AMG CLA45 (C117 | M133) - The hand-built M133 2.0L Turbo punishes owners who skip service. Early cars lack an anti-surge valve (turbo bearing failure), leaky cam adjuster solenoids ($2,000-$4,000 wiring harness repair).
Worst #2: 2010-2015 SLS AMG (C197 | M159 6.2L V8) - Shockingly cheap to buy, brutally expensive to keep. The 2011-2012 DCT is jerky and is a full replacement if it fails, plus gullwing doors need constant alignment and strut/sensor maintenance.
Worst #1: 2011-2012 E63 AMG, CLS63 AMG, S63 AMG, CL63 AMG (W212/W218/W221/W216 | Early M157) - THE engine to avoid. Oil drains from heads overnight, starving the timing chain tensioner on cold start = stretched chain and engine-out failure ($3,000-$7,000+).
THE 4 BEST AMG MODELS TO BUY:
Best #4: 2017-2022 Mercedes-AMG GLC63 / GLC63 S (X253 | M177) - The daily-driver AMG. The M177 4.0L Twin-Turbo V8 is close to bulletproof. Watch for lower radiator debris damage. One of the best cars to avoid depreciation traps.
Best #3: 2008-2014 Mercedes-AMG C63 (W204 | M156 6.2L V8) - The most honest AMG ever built. The legendary naturally aspirated 6.2L. Early head bolt / cam lobe wear is well documented and catchable with a PPI. Get the c63 amg sound without the nightmare bills.
Best #2: 2016-2019 Mercedes-AMG GT / GT S (C190 | M178) - Dry-sump M178 is race-proven and reliable. Only minor exhaust flap and seepage issues. Supercar performance, sports car running costs.
Best #1: 2019-2026 Mercedes-AMG G63 (W463A | M177) - Not a depreciation risk — it's real estate with a twin-turbo V8. Years of M177 refinement + strongest resale in the segment. The ultimate stealth wealth AMG.
CHAPTERS:
00:00 Intro - Don't Buy an AMG Before Watching This
00:30 Worst Number 3: Mercedes-AMG CLA45 (2014-2019) - M133
02:13 Worst Number 2: SLS AMG (2010-2015)
03:52 Worst Number 1: 2011-2012 E63, CLS63, S63 & CL63 AMG - Early M157
06:07 Best Number 4: Mercedes-AMG GLC63 & GLC63 S (2017-2022) - M177
07:30 Best Number 3: Mercedes-AMG C63 (2008-2014) - M156
09:08 Best Number 2: Mercedes-AMG GT & GT S (2016-2019) - M178
10:40 Best Number 1: Mercedes-AMG G63 (2019-2026) - M177
Which AMG would you risk your money on? Comment below. Subscribe for weekly After Warranty reliability rankings.
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