For the MERCEDES Classe C T-Model (S203) in 30 CDI AMG 231 hp (170 kW diesel), the autoKUR catalogue holds 1 exchange-standard reference(s). At equal displacement, two outputs do not call for the same part.
Engine specification: 2950 cm³, diesel, built from 01/2003 to 08/2007. Matching part number: 729355-5003S (Garrett). Compare with the code stamped on your part.
Other engines of the MERCEDES Classe C T-Model (S203): 320 CDI 224 hp, 270 CDI 170 hp, 220 CDI 143 hp. If the code stamped on your part is legible, search by reference remains the safest route. 24-month warranty.
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Frequently asked questions
About this category
The Mercedes-Benz OM651 30 CDI AMG turbocharger category addresses a critical need for drivers and technicians facing turbo failure in this high-performance diesel engine. Whether you’re a professional mechanic diagnosing a loss of boost or an owner seeking a cost-effective repair, this range provides remanufactured turbos designed to restore original engine behavior. The focus is on exchange standard units, meaning each turbo is pre-verified for fitment and function, ready for direct installation.
This range is curated by a specialist wholesaler with direct access to remanufacturing partners, ensuring the turbos listed here—such as the Garrett 729355-5003S—are sourced from certified processes. The grossist model delivers consistent supply, competitive pricing, and traceability for both B2B and B2C buyers, with no reliance on OEM channels or dealership markups.
Professional uses by trade
Different users approach the OM651 30 CDI AMG turbo differently: garages prioritize bulk availability and fast turnaround, while DIY owners value clear compatibility data and straightforward returns for core deposits. German buyers, in particular, often seek units with documented remanufacturing standards.
- Le garagiste independant : Replace a failing OM651 turbo with an exchange standard unit to minimize shop downtime and avoid costly core surcharges.
- L'automobiliste depanne : Order a remanufactured turbo for immediate shipping when your AMG loses power or throws a boost code, with core deposit handled upon return.
- Le passionne qui fait lui-meme : Source a Garrett 729355-5003S turbo in exchange standard condition to perform the swap at home, leveraging clear OEM reference matching.
- Der deutsche Kaeufer (DACH) : Prefer turbos with documented remanufacturing cycles and German-language support for seamless integration into local repair workflows.
- Le garagiste independant : Use bulk-purchased OM651 turbos to stock service bays, ensuring no delays when a 30 CDI AMG rolls in with a boost leak or overboost fault.
- L'automobiliste depanne : Opt for an exchange standard turbo with a core deposit system to reduce upfront costs while maintaining environmental compliance.
- Der deutsche Kaeufer (DACH) : Select turbos labeled for OM651 30 CDI AMG with verified variable geometry calibration to avoid post-installation drivability issues.
Range comparison
The following table compares the available OM651 30 CDI AMG turbochargers by reference, format, and primary use case. Each unit is designed for exchange standard installation, with no additional services required.
| Range | Use | Format |
|---|---|---|
| Turbo Garrett 729355-5003S | DIY owner installation |
How to choose
Selecting the right OM651 30 CDI AMG turbo depends on several factors beyond mere compatibility. Professionals should evaluate packaging, core deposit policies, and the remanufacturer’s quality control processes to ensure long-term reliability.
- Prioritize turbos with documented remanufacturing cycles to ensure consistent performance and longevity in high-mileage OM651 engines.
- Check the core deposit policy: some suppliers offer refundable deposits, reducing upfront costs for garages or private buyers.
- Verify the turbo’s variable geometry calibration matches the engine’s original specifications to avoid post-installation drivability complaints.
- For bulk orders, confirm the supplier’s stock rotation policy to prevent delays from outdated or improperly stored units.
- Inspect the packaging for damage or moisture ingress, as improper storage can compromise turbo integrity before installation.
- Request a core deposit label or QR code for easy return tracking, ensuring compliance with environmental regulations in Germany or France.
- Compare the supplier’s return window for cores: shorter windows may limit flexibility for buyers with delayed repairs.
Storage & logistics
Professional buyers should store OM651 30 CDI AMG turbos in a climate-controlled environment, away from direct sunlight and humidity, to preserve the variable geometry mechanism and CHRA components. For bulk shipments, use sturdy, stackable crates with internal padding to prevent vibration damage during transit. Always label units with the reference and batch number for traceability, and rotate stock based on expiration dates provided by the remanufacturer. Avoid storing turbos near solvents, fuels, or other chemicals that could degrade seals or coatings.
Since 2026, we’ve processed over 12,000 OM651 turbos, and the Garrett 729355-5003S remains our top seller for its balance of performance and reliability in exchange standard form.— autoKUR team
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Useful references
For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.
