Cars / Mercedes-Benz C32 AMG

Mercedes-Benz C32 AMG (2001–2004)

W203 · M112K 3.2L supercharged V6, 349 hp · 5-speed auto

Verdict: A supercharged AMG that still surprises people at lights. Intercooler-pump health and transmission fluid that isn't sweet with coolant are the buy filters.

At a glance

Risk 4/5 Market: Kompressor C-Class bargain

Must-have records:

Intercooler pump replacement / test
Transmission fluid condition (no coolant contamination)
Radiator history (Valeo concern)
Suspension bushing work

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Parts & tools: Shop parts at Summit Racing.

Buy-risk rundown

Issue	Symptom	How to check	Typical cost (as of Nov 2026)
Intercooler pump failure	High IAT; power cut; supercharger limp behavior	Confirm pump/relay operation; check for airlocks	Common ownership item [1][2]
Radiator failure contaminating transmission (Valeo)	Harsh/jerky shifts; sweet/pink fluid	Inspect fluid for glycol; ask about radiator replacement	Contaminated gearboxes are expensive — walk if fluid is wrong [3]
Oil leaks (valve covers, oil cooler seals)	Oil smell, wet covers	Visual inspection	Not yet verified [3]
Suspension bushings / rust at arches	Clunks; bubbling paint	Lift and probe	Not yet verified [4]
Aging electronics / SAM quirks	Random warnings	Full scan and function check	Not yet verified

Cost figures checked against the sources below in Nov 2026. Bracketed numbers refer to the source list.

Notes

C32 precedes the C55/C63 era — simpler in some ways, still an AMG to maintain properly.
Manual swaps exist in the aftermarket; stock autos need the cooler/fluid check above.

Before you buy

Use our printable pre-purchase inspection checklist and get a PPI from a marque specialist.

Sources

BenzWorld, C32 supercharger/IC discussions (accessed Nov 2026)
MBWorld, C32 IC pump / IAT threads (accessed Nov 2026)
MBWorld, C32 buyer's guide thread (accessed Nov 2026)
Adelaide Auto Pro, W203 C32 common problems (accessed Nov 2026)

Last updated 2026-11-05. Costs vary by region and shop.

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