Description
Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.
At D2P AutoParts, we offer a premium left-hand outer LED tail light assembly for the Mercedes‑Benz M-Class (W166, 2011–2015). Built to OEM-style quality, this light provides brilliant LED illumination for brake, tail, indicator, and reversing functions — restoring full lighting performance and modern aesthetics. Whether your original unit is cracked, faded, or simply malfunctioning, this replacement helps maintain your vehicle’s safety and styling integrity.
OEM Number: 1669063301, A1669063301,
Placement on Vehicle : Passenger Side, Outer, Rear, Left
Lamp Type : LED, P21W
Section : Outer section
Voltage : 12V
Quantity : 1
| Make | Model | Variant | Type | Engine | Chassis | Year |
|---|---|---|---|---|---|---|
| Mercedes-Benz | M-Class | Diesel SUV | ML 250 CDI / BlueTEC 4-matic | 2143cc 150KW 204HP OM 651.960 | AWD — W166 | 2011-2015 |
| Mercedes-Benz | M-Class | Diesel SUV | ML 350 BlueTEC 4-matic | 2987cc 190KW 258HP OM 642.826;OM 642.864 | AWD — W166 | 2011-2015 |
| Mercedes-Benz | M-Class | Petrol SUV | ML 350 4-matic | 3498cc 225KW 306HP M 276.955 | AWD — W166 | 2011-2015 |
| Mercedes-Benz | M-Class | Petrol SUV | ML 400 4-matic | 2996cc 245KW 333HP M 276.821 | AWD — W166 | 2013-2015 |
| Mercedes-Benz | M-Class | Petrol SUV | ML 500 4-matic | 4663cc 300KW 408HP M 278.928 | AWD — W166 | 2012-2015 |
| Mercedes-Benz | M-Class | Petrol SUV | ML 63 AMG 4-matic | 5461cc 386KW 525HP M 157.982 | AWD — W166 | 2011-2015 |
| Mercedes-Benz | M-Class | Petrol SUV | ML 63 AMG 4-matic | 5461cc 410KW 558HP M 157.982 | AWD — W166 | 2011-2015 |
| Make | Model | Variant | Type | Engine | Chassis | Year |
Our SKU: TM1669063301_313
All our Rear Tail Light Lamp Led Outer Left For Mercedes-benz M-class W166 2011-2015 are OEM quality and reliable after market car parts. This Rear Tail Light Lamp Led Outer Left For Mercedes-benz M-class W166 2011-2015 is specifically compatible with Mercedes-Benz: M-Class, .
Please use our make-model-year tool to check this part’s compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.
If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.
❓ FAQs — Rear Outer LED Tail Light (Left) for W166
1. Which Mercedes models does this tail light fit?
This tail light is designed for the M-Class W166 (model years ~2011–2015) — including ML and early GLE variants.
2. What is the OEM part number for this tail light?
Common OEM reference numbers include 1669063301 / A1669063301.
3. Is this a genuine Mercedes part or aftermarket?
This light is aftermarket part. D2P AutoParts’ version matches OEM spec for fit, brightness, and durability.
4. What are common signs that this tail light needs replacing?
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Cracked or damaged lens
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LED sections not lighting (brake/tail/indicator)
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Condensation or water build-up in the housing
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Warning message on the dash about a tail lamp malfunction
5. How difficult is installation?
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Remove the trunk or rear hatch trim
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Remove screws / bolts holding the old tail light
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Disconnect the electrical connector
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Install the new tail light, reconnect and test functions
It is a relatively straightforward job for someone with basic tools and experience.
6. Do I need to code or program the new tail light?
Generally, no coding is required for standard LED tail lights on the W166 — they are Plug & Play. But ensure all functions (brake, indicators, etc.) work after fitting.
7. Will replacing this fix all rear light issues?
If the problem is with the tail light assembly (broken LEDs, cracked lens), then yes. However, if the problem is caused by a wiring issue, fuse fault, or control module, then more diagnosis may be needed.
8. Does D2P AutoParts provide a warranty?
Yes — we typically offer a 12-month parts warranty on lighting assemblies, giving you peace of mind for your investment.
9. Is it road-legal / MOT-compliant?
Yes — this LED tail light meets the same functional requirements (brake, indicator, tail) as the original equipment, so it remains road‑legal.
10. Why choose D2P AutoParts for this tail light?
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High-quality OEM-style or aftermarket build
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Cost-effective alternative to dealer parts
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Reliable LED performance
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Trusted UK supplier with great customer service
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