MERCEDES 297-900-39-21 Control Unit Benz

( Manufacturer Part Number: 297-900-39-21 ), ( Part Type: Control Unit ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 60 On The Diagram Is Included ), ( Replaces Part Number: 297-900-69-17 )

Review MERCEDES benz Genuine Control Unit

The Mercedes-Benz 297-900-39-21 control unit is an advanced electronic component designed for select Mercedes-Benz vehicle models. This control unit, also known as the "Power Distribution Center," plays a crucial role in managing and distributing electrical power throughout the vehicle.

Measuring approximately 13.8 inches long, 7.5 inches wide, and 2 inches high, this control unit features a robust and compact design. Its housing is made of high-quality materials that ensure durability and resistance to harsh environmental conditions.

The 297-900-39-21 control unit is equipped with a sophisticated microcontroller that constantly monitors and manages the electrical system's status. It features multiple input and output circuits that enable it to control various vehicle functions, such as the engine management system, lighting, and climate control.

One of the most notable features of this control unit is its ability to communicate with other vehicle systems using a CAN bus network. This allows for efficient and reliable data exchange between different vehicle components, ensuring optimal performance and reducing the risk of errors.

The Mercedes-Benz 297-900-39-21 control unit also includes various diagnostic functions that enable technicians to quickly identify and resolve any issues. These diagnostic functions provide real-time data on various vehicle systems and can help determine the root cause of complex electrical issues.

Additionally, this control unit is designed to be easily integrated with other vehicle systems, making it a valuable addition to any Mercedes-Benz repair or maintenance facility. Its modular design allows for easy installation and replacement, minimizing downtime and reducing labor costs.

In summary, the Mercedes-Benz 297-900-39-21 control unit is a state-of-the-art electronic component that plays a vital role in managing and distributing electrical power throughout select Mercedes-Benz vehicle models. Its robust design, advanced microcontroller, and ability to communicate via a CAN bus network make it an essential tool for any Mercedes-Benz technician or repair facility.

The Mercedes-Benz 297-900-39-21 control unit is an essential part of the Mercedes-Benz E-Class W212 model's engine management system. This control unit, also known as the thermostat control unit, is responsible for regulating the engine's cooling system. Here are some potential pros and cons of buying this control unit:

1. Improved Engine Performance: A faulty thermostat control unit can lead to poor engine performance, including overheating and poor fuel efficiency. Replacing the control unit with a new one can help improve engine performance and fuel economy.

2. Long-Term Savings: Fixing a faulty control unit with a new one can save you money in the long run. The cost of repairing a faulty control unit can be high, and the part may need to be replaced multiple times.

3. Reliability: Mercedes-Benz is known for its high-quality vehicles, and the control unit is no exception. By purchasing a new Mercedes-Benz control unit, you can ensure that you are getting a reliable and high-quality part.

1. Cost: A new Mercedes-Benz control unit can be expensive, especially if you are not purchasing it through a dealership. The cost may be a deterrent for some buyers.

2. Installation: Installing a new control unit can be a complex process, especially for those without experience in automotive repair. It may be necessary to hire a professional to install the new control unit, which can add to the overall cost.

3. Availability: Depending on the specific model and year of your Mercedes-Benz E-Class, the control unit may be difficult to find. It may be necessary to order the part from a dealership or an aftermarket supplier, which can add to the wait time.

The Mercedes-Benz 297-900-39-21 control unit is an essential part of the engine management system for the Mercedes-Benz E-Class W212 model. While the cost of a new control unit may be high, the long-term savings and reliability of the part may make it a worthwhile investment. However, the installation process and availability of the part may be potential drawbacks for some buyers.

If you are experiencing issues with your Mercedes-Benz E-Class W212's engine performance or cooling system, it may be worth considering a new control unit. However, it is important to carefully consider the cost, installation process, and availability before making a purchase. If you are not confident in your ability to install the part yourself, it may be worth hiring a professional to ensure the job is done correctly. Additionally, purchasing the control unit through a dealership may ensure that you are getting a genuine and high-quality part.

Details:

Electrical parts are not returnable. Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 2979003921 price

• $1450.99

specifications instrcluster:

• for makes: Mercedes
• mpn: 297-900-39-21
• part type: Control Unit
• genuine oem: Yes
• warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 60 On The Diagram Is Included
• replaces part number: 297-900-69-17

general instrcluster:

• Interior Parts Accessories > Gauges > Instrument Clusters
• condition: New

returns instrcluster:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

shipping instrcluster:

• transit: 4-7 Days
• type: Fixed
• service: Standard, Expedited, Overnight
• cost: $0.00
• class: Standard, Expedited, One-day

payments instrcluster:

• wallet: Google-pay
• credit card: Diners-club
• other

offer instrcluster:

• sold: 0
• started: April 27, 2025
• availability: In Stock
• options: Ship-to-home
• quantity: 2

seller instrcluster:

• # reviews: 619
• city: Farmington, Utah
• rating: 96.8%

Mercedes 297-900-39-21 Is Similar To:

• 1075420301 Mercedes Benz Instrument Cluster (36.2% similar) Blue leather seats, glove box cover, dash parts. Buyer pays actual shipping. The mileage shows I removed this from a 1976 mercedes in 1997 , and it has been my house since then. This part was working well before I removed it. I will offer the other parts that removed on soon. It belonged to my ...(January 2nd, 2019)
• 1075425001 Mercedes Benz Instrument Cluster Speedometer (37.6% similar) There is also something loose inside the cluster. There are faded needle ans scratches on the plastic. For sale is a used and non tested mercedes benz R107 instrument cluster. No warranty, final sale...(October 8th, 2018)
• 1265425201 Diesel Mercedes Benz Instrument Cluster From Turbodiesel (37.2% similar) You are looking at a VD original instrument cluster from 1985 W126 mercedes benz 300SD turbo diesel sedan. It was working when I removed from the car...(February 22nd, 2019)
• 1405401124 Genuine Mercedes Instrument Cluster Housing Oes For (38.7% similar) Applications mercedes SL3 SL5 SL600. If you live outside of the USA please research and verify it fits your vehicle before purchasing. Or for a quick response...(October 17th, 2018)
• 164 900 8200 Mercedes Benz Instrument Cluster Oem (41.4% similar) Unless stated otherwise all our body parts are used and may have some damage, scuffs scratches. Phone: recent additions. Mercedes benz R350 instrument cluster R500 R63 oem part may also fit ml GL model's used miles unknown match with yours please normal wear ask questions quick reply. Please compare...(April 6th, 2019)
• 1645404847 Mercedes Benz Factory Oem Gl Ml Class Speedometer Cluster Gauges (27.7% similar) Mercedes benz class 164 type original equipment instrument cluster in good used undamaged verified working condition as pictured the actual photos. An exact oem number match is required. Model year all present application details 85K pigtail.class W164 see below oem number...(March 28th, 2019)
• 1715401747 Mercedes Benz Slk Class Oem Dash Cluster Speedometer (27.2% similar) Of offer win. Burnt pixels on cluster. A table this is mercedes benz SLK280 SLK300 SLK350 dash cluster speedometer. A omelet div style MiG: warranty all products are sold as is and untested, unless specified. Lt MiG: BR. Part may have scuffs, scratches, dings, or dents...(November 15th, 2018)
• 202 540 57 11 Vdo Mercedes Benz Instrument Cluster Gauges (38.7% similar) Please also compare the connectors off your unit with pictures in this listing. They came off good running cars and are covered under a 30 day warranty. Parts ordered after 3:00PM PST ship out next day. Your best bet would be to pull part out and match it front back with the pictures of on listing. ...(November 5th, 2018)
• 2035402248 Mercedes Benz Oem Dash Cluster Speedometer (33% similar) Warranty all products are sold as is and untested, unless specified. How SCLNK0 Lt. Spots under glass. A table this is 2002 mercedes benz C320 dash cluster speedometer. Of offer win. Part may have scuffs, scratches, dings, or dents...(November 7th, 2018)
• 2085405711 Mercedes Benz Speedometer Instrument Cluster Miles (37.4% similar) I was not able to drive the car with this cluster. The cluster was not tested on donor vehicle because it heavily damaged from an accident. Please see actual part pictures before making a purchase. For sale is a used 2002 mercedes benz CLK430 instrument cluster with 86 thousand recorded miles. A ...(October 9th, 2018)
• 2114406811 Mercedes Benz Oem Dash Cluster Speedometer (29.6% similar) Warranty all products are sold as is and untested, unless specified. Part may have scuffs, scratches, dings, or dents. Mileage on this unit is not knelt : a table this is 2009 mercedes benz E320 E550 dash cluster speedometer. A: most popular. Of offer win...(November 8th, 2018)