16 detailed photos and 1 video of the actual item β this exact part is what ships.
From donor vehicle 2012 Mercedes ML550 (stock VV0176).
βΆ Watch the engine test video!
Filmed in the donor vehicle before removal β what you hear is what you get.
ASE Master Mechanic Inspection
Hands-on tested before listing by MKF on April 18, 2025
ASE MASTER MECHANIC TEST NOTES & FLAWS NOTED DURING TESTING: (1 – RUNNING ENGINE TEST NOTES): Engine runs great with very smooth idle and strong throttle snap. No smoke or unusual ticking was noted. Turbos sounded good overall, though a little wastegate rattle was present on cold start, which is typical for this platform. (2 – POST REMOVAL INSPECTION NOTES): Overall engine looks good. Inspector observed slight oil weep from the valve covers and around the upper timing covers, with possible seepage at the oil pan. Turbos showed a little radial play but minimal axial movement, and some wastegate play, which is common for this engine type. As always, replacement of standard service and wear items (timing components, plugs, injectors, pumps, seals, gaskets, filters) is recommended before installation.
- Start quality
- GOOD
- Idle quality
- VERY GOOD
- Output under load
- WIDE OPEN SNAP GOOD
- Oil quality
- YES
- Smoke from tailpipes
- NONE
- Unusual engine noise
- NONE
- Turbo notes
- TURBOS HAVE A LITTLE WASTE GATE RATTLE ON COLD START
Noted: YES SEE COMMENTS
In-car test: ENGINE RUNS GOOD, IDLE IS VERY SMOOTH AND WIDE OPEN SNAP SOUNDS GOOD. PENDING A COMPRESSION TEST AND PHYSICAL CHECK THIS WILL BE A UNIT.
Out-of-car inspection: ENGINE LOOKS GOOD, DID NOTE SLIGHT WEEP OF OIL FROM VALVE COVERS AND AROUND UPPER TIMING COVERS POSSIBLY OIL PAN AS WELL BUT ITS VERY FAINT. TURBOS HAVE A LITTLE RADIAL PLAY BUT NOT BAD, THEY ALSO HAVE SOME WASTE GATE PLAY (COMMON TO THESE). AS ALWAYS, RECOMMEND ANY SERVICE AND WEAR ITEMS SUCH AS TIMING CHAINS, BELTS, GUIDES , TENSIONERS, SPARK PLUGS , INJECTORS, PUMPS, SEALS ,GASKETS AND FILTER BE SERVICED BEFORE ENGINE BE PUT BACK INTO SERVICE.
2012 MERCEDES ML550 W166) 4.6L (278.928) TWIN TURBO MOTOR ENGINE ASSEMBLY (139k)
Free 90-day warranty & 90-day any-reason returns on everything.
Freight items ship within 2 business days β big parts get strapped to a pallet and done right.
Does this fit my vehicle?
Paste your 17-character VIN β itβs on your registration, insurance card, or the driverβs-door jamb.
We verify factory/OEM fitment only β upgrades, retrofits, and custom applications may need parts or coding we canβt verify or guarantee.
Item Specifics
- Donor vehicle
- 2012 Mercedes ML550
- Donor VIN
- 4JGDA7DB6CA069109
- Donor miles
- 139,425
- Part number (OEM)
- 2780109101
- Interchange #
- 300-85095
- Brand
- Mercedes (Genuine OEM)
- Stock #
- VV0176
- Viking Item ID
- V22677
ENGINE ASSEMBLY
First-start note: we treat every engine with fogging oil to protect the cylinders in storage and transit. A little smoke on first start-up is normal and expected β it should clear within about 30 minutes of normal running as the fogging oil burns off.
- βThese photos show the exact individual part you'll receive β no stock photos
- βGenuine OEM β factory-original parts
- βInspected before listing β engines & transmissions tested by an ASE Master Mechanic
- βFREE 90-day warranty & 90-day any-reason returns β we cover return shipping for eligible lower-48 + DC orders, freight included (details)
- βFreight item β leaves our dock within 2 business days after payment, strapped and wrapped (holidays excluded). VIN verification of fitment required before shipping.
- βWant longer coverage? Extended warranties to 180 or 365 days β see options
Ask about this part / verify fitment β free, no pressure
Compatible Vehicles (1)
Verified Hollander interchange fitment β the same stickered, tracked compatibility data our listing crew uses. Scroll inside the table; no page-flipping. Not sure? Use the VIN check above and weβll confirm.
| Year | Make | Model | Trim | Engine | Notes |
|---|---|---|---|---|---|
| 2012 | Mercedes-Benz | ML550 | Base Sport Utility 4-Door | 4.7L 4663CC 285Cu. In. V8 GAS DOHC Turbocharged | For a 2012 MERCEDES ML-CLASS 166 Type, ML550 |