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Replaced Headlights - C250d Coupe

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Old Jan 8, 2018 | 04:45 AM
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C250d
Replaced Headlights - C250d Coupe

Hi,

I bought a C250d with front end damage. I've replaced the headlights but they don't work at all - not even the indicators work on it. Any ideas what could be wrong? All the plugs are in and the rear lights work. Just the headlights don't work at all.

Many thanks
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Old Jan 8, 2018 | 11:22 AM
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2015 C300 4Matic
Do they have power at the connectors? Did you check fuses and relays and use a dmm to verify?
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Old Jan 8, 2018 | 06:16 PM
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c300
Originally Posted by zeeshee786
Hi,

I bought a C250d with front end damage. I've replaced the headlights but they don't work at all - not even the indicators work on it. Any ideas what could be wrong? All the plugs are in and the rear lights work. Just the headlights don't work at all.

Many thanks
You didn't indicate which lights you bought, so these are the possible scenarios:
1. You bought the LED lights and attempt to install in a halogent-light car.
2. The LED lights you bought are missing the control modules.
Check the rear lights. When they're on, are they in shape of a curve? If yes, then your car has halogen and you should buy halogen headlights.
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Old Jan 9, 2018 | 09:06 AM
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Originally Posted by pete_w
Do they have power at the connectors? Did you check fuses and relays and use a dmm to verify?
Didn't check the power to the connectors, will check that tonight. Checked the fuses but not the relays - where are the ones for the headlights?
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Old Jan 9, 2018 | 09:08 AM
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C250d
Originally Posted by huyuci
You didn't indicate which lights you bought, so these are the possible scenarios:
1. You bought the LED lights and attempt to install in a halogent-light car.
2. The LED lights you bought are missing the control modules.
Check the rear lights. When they're on, are they in shape of a curve? If yes, then your car has halogen and you should buy halogen headlights.
I know which ones to buy, they're the intelligent LEDs with the double led projector headlamps. I've bought the control packs and used the original ones for the passenger side but there's nothing on either headlight. It can't be right - there's gotta be something wrong somewhere.
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Old Jan 9, 2018 | 01:58 PM
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c300
Originally Posted by zeeshee786
I know which ones to buy, they're the intelligent LEDs with the double led projector headlamps. I've bought the control packs and used the original ones for the passenger side but there's nothing on either headlight. It can't be right - there's gotta be something wrong somewhere.
The original lights had double led projectors?
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Old Jan 10, 2018 | 09:28 AM
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Originally Posted by huyuci
The original lights had double led projectors?
Yep, 100%.
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Old Jan 10, 2018 | 11:47 AM
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W 205 c220d 2018
Originally Posted by zeeshee786
Yep, 100%.
I think you'll find that they need to be coded to the car.

Ernie
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