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You may return most new, unopened items within 60 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within 72 hours of receiving your package to the our warehouse, however, in many cases you will receive a refund more quickly.
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Upgrade or restore your Mercedes-Benz M-Class (W166) with this aftermarket LED rear outer tail light (left side) — compatible with part number 1669063301. At DDP AutoParts, we offer top-quality LED lighting replacements that deliver both style and safety, backed by durable construction and reliable illumination. This unit fits perfectly with your vehicle’s existing wiring, making installation straightforward, and provides crisp, modern LED performance across brake, indicator, and parking lights. Whether you're replacing a broken or faded tail light, or simply enhancing your vehicle with a sportier lighting look, this tail light is a cost-effective and long-lasting choice.
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_94
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.
Will this tail light fit my Mercedes-Benz M-Class (W166)?
Yes — this tail light is designed specifically for W166 models (2011–2015) that use the OEM reference 1669063301 / A1669063301. Provide us with your VIN, and our team will double-check compatibility to make sure it's the right match for your vehicle.
Is this a genuine Mercedes part?
No — this is a high-quality aftermarket LED tail light, not an OEM unit. But being aftermarket doesn’t mean lower quality: we source parts that meet strict manufacturing standards, so you get great performance and durability without breaking the bank.
How reliable is the LED performance?
Very reliable. The LED modules provide bright, even light output for brake, rear, and indicator functions. The housing is built from tough materials and sealed to resist moisture and vibration.
Do I need to do any coding or programming?
Usually not. Many customers report that this tail light is plug-and-play — it connects directly to the existing wiring harness. That said, some vehicles (depending on how their SAM/BCM is configured) may throw a “lamp malfunction” warning, especially with aftermarket LEDs. In that case, our support team can suggest solutions or compatible resistor modules.
Could I get a dashboard error after installation?
There’s a small chance of a “lamp malfunction” alert, especially if the onboard modules detect a load difference. But this is rare with our parts, and if it does happen, we’ll help you fix it quickly via compatibility checks or recommended workarounds.
How difficult is it to install this tail light?
For someone experienced, installation is straightforward:
Remove the trim or tailgate interior panel
Unscrew the old tail-light unit
Disconnect the original connector
Plug in your new LED tail light
Secure with screws / bolts, and test all light functions
If you’re unsure, a professional installer will work fine too — and it's usually a quick job.
Do you offer a warranty or return policy?
Yes — every tail light from DDP AutoParts comes with a standard warranty and our reliable customer support. If the part doesn’t fit, or if you run into any issues, just contact us and we’ll help resolve it or process a return.
Is this tail light road-legal?
Many of our aftermarket tail lights are E-marked / compliant with road safety standards. If you have any concerns about legality in your country (UK / EU), just ask us — we’ll check the specific product’s certification for you.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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