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HIDS-DIRECT | REPLACEMENT LIGHTING CONTROL
Mercedes-Benz E-Class W212 / S212 / C207 / A207
Also suitable for matching Infiniti Q30 and QX30 low-version headlamp applications with the correct Infiniti programming.
Replace a faulty LED headlamp control unit with this brand-new aftermarket A2129005324 replacement module. Designed for matching Mercedes-Benz E-Class facelift headlamp applications, it controls LED lighting functions within the compatible headlamp assembly.
This module is associated with the Hella H7 halogen headlamp / LED daytime running light configuration on the relevant Mercedes applications. It is not a universal replacement for every E-Class headlamp system.
For Infiniti QX30, this module is for the low-version headlamp specification only and requires the correct Infiniti programming. For Q30, match the original A2129005324 module and confirm the headlamp specification with us. Please contact us before ordering to confirm the required configuration. A Mercedes-configured unit should not be assumed to work on Infiniti.
QX30 high-version headlamps: Module references A2129005424 + A2228700789 can be coded for this headlamp specification. These are separate modules and are not interchangeable with the A2129005324 module sold on this page. If your vehicle has high-version headlamps, please contact us so we can confirm the correct module configuration.
Replaces the matching original module using the existing headlamp mounting points and connections.
Suitable for either front headlamp when the original reference, headlamp specification and programming match.
Normally no additional coding is required on the compatible Mercedes-Benz applications listed below.
One aftermarket control unit supplied with a 1-year warranty.
| Vehicle | Model range | Fitment requirement |
|---|---|---|
| Mercedes-Benz E-Class saloon | W212 facelift | 2013–2016 | Matching Hella H7 / LED DRL headlamp and original module reference. |
| Mercedes-Benz E-Class estate | S212 facelift | 2013–2016 | Matching Hella H7 / LED DRL headlamp and original module reference. |
| Mercedes-Benz E-Class coupé | C207 facelift | 2013–2017 | Matching Hella H7 / LED DRL headlamp and original module reference. |
| Mercedes-Benz E-Class cabriolet | A207 facelift | 2013–2017 | Matching Hella H7 / LED DRL headlamp and original module reference. |
| Infiniti Q30 | H15 | 2015–2019 | Original module A2129005324; correct Infiniti programming required. |
| Infiniti QX30 | H15 | 2016–2019 | Low-version headlamps only. Original module A2129005324; correct Infiniti programming required. Not for high-version headlamps. |
Years identify the relevant vehicle ranges, not guaranteed fitment to every engine, trim or headlamp option. Registration year may differ from production year. Engine badges such as E200, E220, E250, E300, E350 or E400 do not establish compatibility on their own.
If you are unsure, send HIDS-DIRECT your vehicle details and clear photographs of the original module label and connectors before purchasing.
Module part numbers & cross-references| Reference group | Part numbers |
|---|---|
| Primary module reference | A2129005324 / A 212 900 53 24 |
| Other listed Mercedes references | A2129008122 · A2129008224 · A2189007206 · A2129003417 · A2129005211 · A2229003600 |
| Exchange / catalogue references | A218900720680 · A2189007206/80 · MA218900720680 · MA2189007206/80 |
| Continental primary reference | A2C73680105 |
| Other listed Continental references | A2C74913005 · A2C73680104 · A2C30752305 |
These are identification and cross-reference numbers. Related modules can share a housing while using different hardware, software or vehicle settings. A reference appearing here does not establish universal interchangeability, particularly for Infiniti.
| Reference type | Left headlamp | Right headlamp |
|---|---|---|
| Mercedes-Benz | A2128209359 / A2128201939 | A2128205239 / A2128202039 |
| Hella | 1LX 011 066-631 / 1LX011066-631 | 1LX 011 066-641 / 1LX011066-641 |
Reference examples for relevant Mercedes-Benz headlamps. Left and right are identified from the seated driver’s perspective, facing forwards. These headlamp references do not apply to Infiniti.
| Label type | Reference examples |
|---|---|
| Primary hardware reference | HW-NR A2229014201 |
| Primary software reference | SW-NR A2129024008 |
| Other hardware references | A2189012401 · A2229014204 · A2229012900 |
| Other software references | A2189025303 · A2129028707 · A2129024908 · A2229022900 |
These are label references associated with the module family, not a promise that the supplied replacement carries each number or that all versions are interchangeable. Infiniti compatibility depends on the correct vehicle configuration.
Professional diagnosis and installation are recommended. Follow the vehicle manufacturer’s electrical isolation and headlamp removal procedures. Check the wiring and connectors and inspect the headlamp for water ingress before replacing the module.
Rectify any leak or sealing problem before fitting. Do not assume that a failed daytime running light or parking light is always caused by the control module; faults in the light source or wiring can produce similar symptoms.
Complete headlamp, bulbs, LED light source, additional control units and fitting accessories are not included. Manufacturer names and OE numbers identify applications only; this is not a genuine Mercedes-Benz, Infiniti, Continental or Hella product.
It is intended for compatible Mercedes-Benz E-Class facelift W212 and S212 models from 2013–2016 and C207 and A207 models from 2013–2017. Infiniti Q30 (2015–2019) applications and QX30 (2016–2019) low-version headlamp applications are also supported when the original module is A2129005324 and the replacement is correctly programmed for Infiniti. Model and year alone do not confirm compatibility; compare the original module, connectors and headlamp specification before ordering.
No. For QX30, this module can be coded for the low-version headlamp specification only. High-version QX30 applications use a different module configuration, using module references A2129005424 and A2228700789. These are not interchangeable references for the module on this page. For Q30, confirm the original A2129005324 module and headlamp specification. Contact us before ordering to confirm the required Infiniti programming.
For the compatible Mercedes-Benz applications described here, this replacement is normally a direct-fit unit with no additional coding required. Infiniti applications require the correct Infiniti programming; a Mercedes-configured module should not be assumed to work. Confirm the required configuration with us before ordering.
Yes, the module can be used on either side where the original part number, headlamp specification and programming match. One module is supplied per order.
No. This is one replacement LED headlamp control module. The complete headlamp, LED light source, bulbs and other control units are not included.
No. This is a brand-new aftermarket replacement. Mercedes-Benz, Infiniti, Continental and Hella names and part numbers are used only to identify relevant applications and reference numbers.
It may resolve an LED lighting fault caused by a failed control module, but similar symptoms can be caused by wiring, connectors, water ingress or a failed light source. Diagnose the fault before ordering and rectify any moisture or sealing problem before fitting the replacement.
This brand-new replacement module is supplied with a 1-year warranty. Retain your order details and contact HIDS-DIRECT if you need assistance.
Contact HIDS-DIRECT with your vehicle details, original part number and photographs of the module. We can help you check the correct replacement and confirm the programming requirement for your application.
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