Very inconspicuous place. The workshop is superbly done and Nic really knows what he’s doing. I had him convert my speedometer to digital and install illuminated air vents and 3D Burmester tweeters. I felt like I was bombarding Nic with questions and he knew the answer to everything. He is just as enthusiastic about the results as I am. Simply 1st class! Laying the cables, etc. As original from the factory.

Do you want to retrofit a rear view camera, Apple CarPlay, or additional equipment in your Mercedes-Benz or AMG? ProDiag Bremen handles on-site retrofitting in Verden near Bremen. The suitable solution depends on the model series, year of manufacture, and existing equipment.
We check your request using the chassis number and discuss the required scope of parts, installation, and necessary coding. We use Mercedes-Benz original parts; we will coordinate accessory solutions with you.
Is the retrofit suitable for my Mercedes?
The model series listed below provide an initial orientation. The equipment of your specific vehicle is decisive. For your inquiry, please have the 17-digit chassis number (VIN), your desired retrofit, and if necessary, a photo of the existing display or steering wheel ready.
You can find the VIN in the vehicle registration certificate Part I in field E. Please enter it in the inquiry form. You can send us photos via WhatsApp after consultation.
Our retrofits for your Mercedes Benz
With the current model series, it is no longer sufficient to cancel the VMAX as part of a map optimization in the engine control unit. The VMAX and many other parameters are also monitored and limited in the CPC control unit. The CPC must therefore also be modified. You will receive a new additional CPC from us which contains new and individual parameters and can therefore switch between the original and our CPC at any time. It is also possible to cancel the torque limitation or to control the flap control (if available) individually.
CPC Tuning model series:
CLS 257, E 213, E 238, C 205 Mopf, GLC 253 Mopf, G 463, CLA 118, GLE 167, GLS 167, A 177, GT 190, S 217, S 222, SL 232, B 247

Used cars often lack one or two special features. This includes the reversing camera, but it is easily possible to have this retrofitted. In reverse gear, the camera switches on automatically and shows the image on the media display of the Comand or Audio20. Static and dynamic auxiliary lines are also possible on most models. Only original parts are used and the SA code is also entered in the vehicle’s data card. So everything is as it was ex works.
Affected model series rear view camera:
CLS 218, CLS 257, E 213, E 238, E 212, C 205, C 204, GLC 253, GLK 204, G 463, V 447, V 470, CLA 117, CLA 118, SLC 172, E 207, GLA 156, GLE 166, GLE 167, A 176, A 177, GT 190, S 217, S 222, S 216, S 221, SL 231, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293

Ambient lighting has become increasingly popular in recent years and has become a real eye-catcher with the introduction of the w213. However, on many models such as the 205 Vormopf there are only 3 colors and these are quite weak. Here it is possible to convert to 64 colors which are clearly brighter and still remain operable via the original controls. Of course, it is also possible to install the originals with 3 colors. Or from single color to multicolor. Then even several colors are possible at the same time and animations for e.g. the automatic climate control.
Affected model series Ambient lighting:
CLS 218, CLS 257, E 213, E 238, E 212, C 205, GLC 253, G 463, V 447, CLA 117, CLA 118, GLA 156, GLE 166, GLE 167, A 176, A 177, GT 190, S 217, S 222, SL 232, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293

Illuminated air vents make a difference in the interior. In conjunction with the ambient lighting, you can control up to 64 colors and even multicolor. Whether original 3 or 64 colors, retrofitting is always possible. In addition, you get the new turbine look, which is an elegant and modern eye-catcher in the interior.
Affected model series illuminated air vents:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, V 447, CLA 117, CLA 118, GLA 156, A 176, A 177, GT 190, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293
Alternatively also available directly in the new ProDiag Bremen Shop: Illuminated air vents retrofit store

It is possible to install the digital speedometer in the w213 pre-mop, w205 mop and some newer model series. Original and as ex works, you can choose between 3 different styles and display individual content. The original mileage, ASSYST data and the coding are of course adopted. However, there is also an option to install a digital speedometer in the w205 Vormopf. The one from the S-Class w222. Unfortunately without different styles with all the advantages of a digital speedometer.
Digital speedometer model series affected:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, CLA 118, A 177, B 247, GLB 247, GLA 157, GLE 167

The Air Balance optional extra scents the interior with an individually inserted fragrance bottle. The fragrance can be selected in 3 different levels. The process is programmed at fixed intervals so that you don’t get used to the smell too quickly and only add a pleasant scent to the interior in between. The classic “fragrance tree” is therefore a thing of the past.
Affected Air Balance model series:
CLS 257, E 213, E 238, C 205, GLC 253, EQC 293, EQE 295

The Head-Up Display contributes greatly to safety and offers a number of functions to keep your attention off the road as much as possible. It can display the speed, traffic signs, navigation, Distronic and engine speed “floating” above the hood. A glance at the speedometer is therefore usually no longer necessary. The display content can be flexibly selected in the speedometer. Automatic brightness control makes it very easy to see even in bright sunlight. Once you’ve had it, you usually don’t want to go without it.
Affected model series Head Up Display:
CLS 257, E 213, E 238, C 205, GLC 253, B 247, GLB 247, GLA 157, A 177, GLE 167

The halogen headlights can be replaced with LED High Performance, LED Intelligent Light System (ILS) or Multibeam. Depending on the vehicle, additional sensors must be retrofitted to the axle, as the LED headlights have automatic headlight range adjustment. With LED headlights, it is also possible to activate the automatic high beam assistant. The ILS and multibeam headlights are dynamic and have additional functions such as bend lighting, cornering light and highway light.
HP or ILS model series affected:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, V 447, CLA 117, CLA 118, GLA 156, A 176, A 177, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293

The COMAND Online, which features a larger display and hard drive navigation, can be retrofitted. Compared to Audio20, you get faster hardware, hard drive navigation, online functions, a media register on the internal hard drive for music, and the option to connect a rear view camera. The larger display and faster hardware alone make COMAND indispensable. We can also offer the latest navigation data for all COMAND Online and MBUX systems.

The new steering wheel simply looks great. Of course, the desire to install it in older model series quickly arises. This is not a problem at all. We have a special adapter for this, so even the touch fields work in many older model series like 204, 212, 205, 253, 222, 217, and even the V-Class 447. The new steering wheel can be custom upholstered or one in the series design can be used.

The analog clock creates an aesthetic look in the interior and is a must for detail lovers. Whether the normal Mercedes Benz clock or the AMG clock in IWC design. Both can be easily retrofitted, even in the GLC, although the analog clock is not even available ex works. Once connected and coded, the clock always sets itself automatically to the time in the Comand.
Affected model series analog clock:
CLS 257, E 213, E 238, C 205, GLC 253,

The Burmester sound system makes a big difference to the standard system and is noticeable in every respect. The additional low-frequency loudspeakers in the footwell are clearly noticeable and thus offer a new sound experience. The sound system can be retrofitted in many model series. In older models, the Harman/Kardon was installed ex works, but this is also no problem. For those who want the absolute high-end experience, the Burmester 3D High End is just the thing. A tremendous sound only available in selected model ranges.
Affected model series Burmester sound system:
CLS 218, CLS 257, E 213, E 238, E 212, C 205, C 204, GLC 253, GLK 204, G 463, V 447, V 470, CLA 117, CLA 118, SLC 172, E 207, GLA 156, GLE 166, A 176, A 177, GT 190, S 217, S 222, S 216, S 221, SL 231, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293

We can also completely customize speedometer scales. For example, for a w204 C350, a scale with a red ring matching the red stitching in the interior and the fine C350 logo in the lower area. Red hands and a carbon pattern. Please contact us and we will create your individual design including subsequent installation. An extension from 260 to e.g. 320 km/h is also possible.
Affected model series Speedometer scale:
CLS 218, E 212, C 204, GLK 204, CLA 117, E 207, GLA 156, GLE 166, A 176

Apple CarPlay and Android Auto for your Mercedes Benz is a very important feature. The direct connection of e.g. Google Maps, Spotify or WhatsApp and much more on the media display of your Mercedes means you are less distracted from the traffic and can still use all the functions without having to pick up your smartphone. With some systems it is possible via the original software, with some an additional module must be installed. We will be happy to advise you on the best choice for your Mercedes Benz and your needs.
Affected model series Apple CarPlay:
CLS 218, CLS 257, E 213, E 238, E 212, C 205, C 204, GLC 253, GLK 204, G 463, V 447, GLE 166, GLE 167, V 470, CLA 117, CLA 118, SLC 172, E 207, GLA 156, GLE 166, A 176, A 177, GT 190, S 217, S 222, S 216, S 221, SL 231, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293

For the models w177, 247,118,167 it is possible to retrofit Distronic Pro at a reasonable price if cruise control (standard) is fitted. The keypad in the steering wheel has to be replaced, some things coded and learned. The normal cruise control is then converted into cruise control and the vehicle maintains the set distance to the vehicle in front. When Distronic is activated, the vehicle brakes automatically and accelerates again when the distance is sufficient. In conjunction with the Traffic Sign Assistant, the recognized traffic signs can be automatically adopted.
Distronic model series affected:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, V 447, CLA 118, A 177, GT 190, B 247, GLB 247, GLA 157, GLE 167

The blind spot assistant makes it easier for the driver to see whether a vehicle is in the blind spot that is not visible. The exterior mirrors have an illuminated triangle which can light up red. The retrofit is particularly attractive for newer models as it can be installed independently of other assistants.
Affected model series Blind spot:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, V 447, CLA 118, A 177, GT 190, B 247, GLB 247, GLA 157, GLE 167

The electrically folding exterior mirrors can also be retrofitted. When the vehicle is locked, the exterior mirrors fold up automatically and extend again when unlocked. This can be activated and deactivated in the speedometer. There is also an additional button with which the mirrors can also be folded in manually. Useful in the car wash, for example.
Affected model series Electric exterior mirrors:
CLS 218, CLS 257, E 213, E 238, E 212, C 205, C 204, GLC 253, GLK 204, G 463, V 447, V 470, CLA 117, CLA 118, SLC 172, E 207, GLA 156, GLE 166, A 176, A 177, GT 190, S 217, S 222, S 216, S 221, SL 231, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293, GLE 167

On the 213 Mopf and other models, it is relatively easy to retrofit the active lane departure warning system, provided that a suitable camera is installed in the WSS.
The vibration comes from the steering gear on all new steering wheels and there is no longer a vibration motor in the steering wheel.
Affected model series Active Lane Keeping Assist:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, V 447, CLA 118, A 177, GT 190, B 247, GLB 247, GLA 157, GLE 167

The AMG seats not only look much better than the standard ones, they are also much more comfortable on long journeys. Of course, this varies individually for everyone, but generally, the back muscles and spine are better supported in a harder bucket seat than in a soft armchair.

The AMG buttons can be easily retrofitted to the newer models, but only on genuine AMG vehicles. The AMG Drive Unit control unit is required.
All functions from the center console can now also be operated on the steering wheel.
Alternatively also available directly in the new ProDiag Bremen store: U88 Retrofit Shop

The trailer coupling can also be retrofitted to your Mercedes as an original. There are different variants to choose from depending on the model. You can also decide whether the larger fan should be installed or whether the towing capacity remains standard and the effort and costs are lower.
Affected model series trailer coupling:
CLS 218, CLS 257, E 213, E 238, E 212, C 205, C 204, GLC 253, GLK 204, G 463, V 447, V 470, CLA 117, CLA 118, SLC 172, E 207, GLA 156, GLE 166, A 176, A 177, GT 190, S 217, S 222, S 216, S 221, SL 231, SL 232, B 242, B 246, GLE 292, B 247, GLB 247, GLA 157, EQC 293

Workshop example: Parking sensors on a C63 re-import
We retrofitted parking sensors on a C63 re-import without PTS. The sensors were painted in the vehicle color, the necessary wiring and control units were added, and the system was coded.
Ob eine vergleichbare Nachrüstung für Ihr Fahrzeug möglich ist, prüfen wir anhand der FIN und der vorhandenen Ausstattung. Inquire about parking sensors

It is also possible to retrofit the digital widescreen speedometer in the 213 and 238. This requires a few prerequisites or additional modifications. You can then choose between 3 styles and various digital contents. All vehicle data such as mileage, ASSYST and the coding are transferred and are then identical and original to the vehicle. Of course, the AMG menu can also be activated and the digital scale is extended to 280 or 330 km/h, for example.
Improve your driving experience with the Mercedes widescreen retrofit from ProDiag Bremen, your trusted partner for original Mercedes retrofits.
Widescreen model series affected:
CLS 257, E 213, E 238, C 205, GLC 253, G 463, CLA 118, A 177, B 247, GLB 247, GLA 157, EQC 293

Costs & procedure Mercedes retrofit
The price depends on the desired equipment, existing components, and the effort for installation and coding. Therefore, we will quote the costs specifically for your vehicle.
Send us your VIN and your desired retrofit. Based on this, we will discuss the scope of services, costs, and required working time with you.
- Specify vehicle and request: Send the VIN and the desired retrofit via the form.
- Coordinate scope: We clarify the requirements, necessary parts, costs, and working time with you.
- Arrange appointment: As soon as the parts are available, we will coordinate the installation in Verden near Bremen.
- Perform retrofit: The agreed scope includes installation and the necessary codings.
Request form retrofitting
We use your details to respond to your enquiry. Information on how we handle your data and your rights is available in our privacy policy.
We use your details to process your inquiry. Information on how we handle your data and your rights can be found in our privacy policy.
Retrofitting in the ProDiag Bremen online store
For selected retrofits, you can already find offers in the shop, for example the AMG Drive Unit buttons U88. Please check the requirements of the respective product before ordering.
For a new map version instead of additional equipment, please use our Navi Update Overview. If your existing device no longer starts correctly, you can find help with COMAND Repair.
Coding, conversion & retrofitting for Mercedes & AMG models in original quality
PRODIAG BREMEN SINCE 2017
Whether coding, retrofitting or tuning affects an existing manufacturer warranty depends on the particular modification and the warranty terms. We cannot give a blanket assurance that the warranty will remain unaffected. Please clarify the scope of your warranty with the warranty provider before commissioning any work. We will explain the planned work on your vehicle.
Only genuine parts are used; accessories can only be installed upon request and customer agreement.
Yes, unfortunately, the codings cannot be permanently integrated into the vehicle and can therefore disappear again. It is different with retrofits, as the SA code has been entered, this activation remains forever.
Generally, appointments can be made flexibly once all parts are available.
Cash, EC card, PayPal, or on account.
Customer opinions
Retrofitting a reversing camera in my MB B-Class.
Quickly received a quote.
Everything agreed was correctly adhered to.
Mr. Rogalski is friendly and competent.
I would gladly go there again and again for other matters.
I give it 5 stars because everything was perfect.
Steering wheel conversion on my station wagon by ProDiag-Bremen.
I can recommend the company without reservation. Nice contact, friendly reception, clean execution. 1A in all respects.
Many thanks again!
Retrofitting DAB+ in the A205 Cabrio Professional retrofitting and coding of DAB+ in my A205. Very professionally executed installation with only original parts. Very nice and reliable contact. Absolutely recommendable.
The 600 km journey was definitely worth it.
The drive unit control unit was retrofitted and coded on my W213 AMG &
Various updates were installed.
All questions were answered in detail on site.
Workshop is very clean and very professionally equipped.
The work was done absolutely conscientiously.
The vehicle was also vacuumed out when it was handed over.
Service and work are the top priority here.
Price / performance is absolutely excellent.
Perfect service! Polite communication in English en took all the time to explain the details of his service. Will come back (online) again!
Super friendly, very professional and very good clean work. I can only recommend them at any time.
I have already used the service several times. To read out error codes etc. Even if it was at short notice or late at night, I was always helped!
I am completely satisfied ??
I have been to Benzcoding 3 times now and have always experienced very good service. The conversions are perfect. Everything is very professional. The price is also very good. The guy knows what he’s doing. Very competent even with difficult things. Also helps with problems where Mercedes has already given up. Will definitely come back again.
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