Mercedes complete engine M176.980 176 S S class 560 4km!

finding an M176.980 engine with only 4km (effectively delivery mileage) is an extraordinary find. This 4.0L Biturbo V8 is the “luxury” cousin to the AMG M177, powering the W222 S560 (both RWD and 4MATIC) and the Maybach S560.

Because this engine has virtually zero miles, it is essentially a “new-old-stock” (NOS) unit, making it a prime candidate for a high-value restoration or a catastrophic failure replacement for an S-Class.

1. Technical Profile: M176.980

While it shares the “Hot V” architecture with AMG engines, the M176 is tuned for refinement, silence, and effortless low-end torque.

2. 2026 Market Valuation (Estimated USD)

An engine with 4km is priced significantly higher than a typical used unit ($12k–$15k with 80tkm). It is priced as a “New” component.

3. The “4km” Storage Warning (2026)

An engine with only 4km has likely been sitting for several years. Even with zero internal wear, you must address “shelf-life” issues before firing it up:

• Seal Lubrication: The valve stem seals and crankshaft seals may have dried out. It is critical to prime the oil system before the first start.

• Oil Flush: The factory “break-in” oil has likely oxidized. It must be drained and replaced with fresh 229.5 or 229.6 spec oil immediately.

• Borescope Inspection: Before purchase, a borescope should be used to ensure no moisture caused surface rust on the cylinder walls (Nanoslide coating) during long-term storage.

4. M176 vs. M177 (AMG) Differences

If you are considering swapping this into an AMG or vice versa, be aware of the differences:

• Internal Components: The M176 uses different pistons and a different crankcase alloy optimized for noise/vibration/harshness (NVH) rather than extreme track heat.

• Turbochargers: The turbos on the M176 are smaller than those on the M177/178 (C63/GT), designed for instant torque rather than top-end horsepower.

• Software: The S560 ECU (Bosch) uses a completely different calibration for the 9G-Tronic transmission than the AMG MCT gearboxes.

5. Installation in an S560

• 4MATIC Integration: The .980 variant is designed to accommodate the front driveshafts passing through the oil pan.

• CAMTRONIC System: Ensure the actuator connectors for the cylinder deactivation system are not cracked. This system is what allows the S560 to run as a V4 during highway cruising for fuel efficiency.

• Programming: This engine will require SCN Coding via Xentry to be recognized by the car’s VIN-locked security system (FBS4).