Mercedes-Benz W221 M272 A/C Compressor 7SEU17C 447260-2956 - Used Original Parts

Description

Product Title

Mercedes-Benz W221 M272 A/C Compressor Denso 7SEU17C 447260-2956 - Used Original Parts

Diagnosis and Common Symptoms

A failing Denso 7SEU17C compressor on the M272 V6 platform typically announces itself well before total failure. Watch for intermittent A/C cutout with THERMIC or "Check A/C System" messages on the instrument cluster, especially after long idle in Malaysian traffic. A worn internal clutch bearing produces a distinct metallic squeal or grinding noise on startup that changes pitch with engine RPM. Refrigerant pressure sensor faults (often stored as low-side or high-side pressure implausible codes) frequently trace back to internal compressor wear rather than the sensor itself. Some owners report the compressor clutch engaging but the cabin blowing warm air intermittently - a sign of internal valve plate or swash plate wear inside the 7SEU17C unit. Left unaddressed, a failing compressor can shed metal debris into the A/C loop, contaminating the condenser, expansion valve, and evaporator, turning a single-part fix into a full system flush.

Introduction

This listing is for a Genuine Used Denso 7SEU17C A/C compressor, part number 447260-2956, pulled from a Mercedes-Benz W221 fitted with the M272 engine. Every unit in our inventory is Tested for clutch engagement, shaft rotation, and internal compression before it goes on the shelf, so you are not gambling on an unknown take-off part. Sourcing a Genuine Used compressor rather than an aftermarket reproduction preserves the correct refrigerant flow characteristics and mounting geometry the M272 platform was engineered around. For W221 owners in Malaysia looking to restore ice-cold A/C without paying luxury-brand new prices, this is a straightforward, tested replacement.

Product Details

• Brand: Denso
• Model Compatibility: Mercedes-Benz W221 (S-Class) with M272 V6 engine
• Part Name: A/C Compressor
• Part Number: 447260-2956
• Compressor Type: 7SEU17C
• Condition: Genuine Used (Tested Working)
• Notes: Tested for clutch engagement, pulley rotation smoothness, and internal seal integrity prior to listing. Recommend replacing the receiver drier and flushing the A/C loop during installation, and verifying refrigerant oil level matches Denso 7SEU17C specification before recharge.

Frequently Asked Questions

Q: Does the Denso 7SEU17C compressor on the W221 M272 need any coding or adaptation after replacement? A: No coding is required. The compressor is a mechanical/refrigerant component controlled by the A/C clutch relay and pressure sensors, so once it is physically installed, evacuated, and recharged, the system operates without any module programming.

Q: How do I confirm this compressor fits my specific W221? A: Match the part number 447260-2956 stamped on the compressor housing against your original unit or your parts catalogue reference for the M272 engine code. The W221 was also fitted with the M273 V8 in other trims, which uses a different compressor, so always verify the part number rather than relying on chassis code alone.

Q: What symptoms indicate the compressor is failing before total breakdown? A: Early signs include a grinding or squealing noise from the clutch bearing on cold start, intermittent A/C cutout with a dashboard climate warning, and A/C pressure sensor fault codes that do not resolve after sensor replacement, pointing to internal wear in the 7SEU17C valve plate.

Q: Why choose a Genuine Used compressor instead of a new aftermarket unit for the M272? A: A Genuine Used Denso unit retains the original manufacturer tolerances and refrigerant oil compatibility that aftermarket reproductions often do not match precisely. Given that A/C compressors typically last well over 150,000 km when not abused, a tested used unit offers reliable service life at a fraction of the cost of a new Mercedes-Benz replacement part in Malaysia.

Q: Are there any installation gotchas specific to this compressor on the M272? A: Yes, the serpentine belt routing and tensioner access on the M272 require the compressor to be aligned correctly with the idler pulley before final torque, and the refrigerant oil charge must be adjusted to account for oil already retained in the used unit to avoid over-filling the system.

Why Choose Us?

• Verified functionality
• Actual photos/videos provided
• 30-day exchange warranty
• Each unit is checked for internal compression and clutch engagement to reduce the risk of repeat A/C failure after installation

Shipping

Location: Kuala Lumpur, Malaysia Shipping: West Malaysia RM50 (Estimate) / East Malaysia RM80 (Estimate) Delivery: 1-2 working days Packaging: Secure anti-static packaging, heavy-duty shock absorption. (We send actual photos/videos of the unit and packaging before shipping)

Warranty and Return Policy

• 30-day exchange warranty from the date of receipt.
• Proof of professional installation by a qualified workshop is required for warranty claims.
• No returns if the item is opened, modified, tampered with, or damaged due to incorrect electrical wiring.
• Exchange only for confirmed internal electronic defects.

How to Order

1. WhatsApp us to confirm compatibility with your specific VIN.
2. Send your chassis number or a clear photo of your old unit label.
3. Confirm order details and stock availability.
4. Receive actual product photos and diagnostic test confirmation.
5. Make payment via bank transfer.
6. Item is shipped immediately with tracking details provided.

Contact Us

Ready to order or have questions? Tap the WhatsApp button to chat with our team directly.

Price Notice

Price is estimated only. Actual price depends on current stock levels, specific part number revisions, and unit condition. Please WhatsApp us for a formal quote.

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