Back to Parts List

Mercedes C-CLASS 2.1 - 6.2 C220 / C230 / C250 / C280 / C320 / C350 ECU (Transmission) - Part No: A0335457332 / 5WP21101

OEM no: 5WP21101 / 5WP2 1101 / 5WP21111 / 5WP2 1111 - Mercedes C-CLASS - ECU (Transmission) zoom
Rating 4.83

Send your own unit for rebuild

20
Return Shipping $
Turnaround time 2-3 working days
Programming see details
Rebuild Details full details

PRODUCT INFORMATION

Vehicle Details:

MakeMercedes ModelC-CLASS Engine Size:2.1 - 6.2 SpecificationC220 / C230 / C250 / C280 / C320 / C350 Years:2004 - 2014

Common Faults:

Mercedes C-Class 7G-Tronic seven speed auto gearbox / transmission ECU (otherwise known as Transmission 722.9) failures are very common due to internal component breakdown. Running symptoms such as 'jerking' or jolting into gear when up and down shifting, becoming stuck in gear or holding in gear, forced limp home mode and being unable to select any gear. When the vehicle is scanned with diagnostic tools a myriad of fault codes can be stored including: P0705 - Transmission Range Sensor (TRS) Circuit Malfunction, 0717 - The Signal From Component Y3/8n1 (Turbine Speed Sensor, VGS) Is Not Available, 0718 - The Component Y3/8n1 (Turbine Speed Sensor, VGS) Is Defective, 2201 - The Component Y3/8n2 (Internal Speed Sensor) Is Defective and 0721 / 0722 - Y3/8n3 Output Speed Sensor Circuit. If I purchase this will it cure my fault?

Part Numbers:

VM no: A0335457332 / A 033 545 73 32 / A0034465110 / A 003 446 51 10 OEM no: 5WP21101 / 5WP2 1101 / 5WP21111 / 5WP2 1111

Warranty:

Lifetime Warranty*, unlimited mileage
Product Code: ETM457332

REBUILD DETAILS

Rebuild details (“Get Yours Rebuilt”): Professional level diagnostic equipment and/or specialist knowledge may be required when reinstalling, clearing of fault codes and professional diagnostic checks should be carried out following installation. In order to get your unit rebuilt you will need to remove the faulty unit from the vehicle and send it to us, we would then test the unit and if it is faulty we would rebuild it then return it to you with a Lifetime* warranty. When you complete payment the unit will be automatically booked in to our workshop and you will receive full step by step instructions for sending the unit to us, you will also be able to track the progress of the unit at every stage using the “Track Your Part” link located at the top of most pages of our website. If the unit turns out not to be faulty then we would refund your payment and just charge a test fee of $70 + return shipping. Please make sure you check the part numbers on the unit match the rebuild service you are purchasing. Not all parts can be repaired. If the part is not repairable, we will refund your payment and ship it back to you. If you send in an item that does not match the one in the description, we will contact you and try to rebuild it if requested. We recommend the following couriers when sending your unit to be rebuilt: DHL Express.

Turnaround time: 
The quoted turnaround is the estimated number of working days we will likely need your unit complete the work. It does not include shipping time, weekends or national holidays. In some instances it may take longer to complete your unit if we need to order parts or if your unit requires extended testing.

2-3 working days

Programming details:
The following descriptions represent the programming state of the unit once you receive it

All original programming will be retained, no need to program anything once you receive the unit back. However In exceptional circumstances we may need to replace the software within your unit (if it is corrupt or causing problems) if this is the case then we will inform you of this before rebuilding the unit. Professional level diagnostic equipment will be required when installing, clearing of fault codes and professional diagnostic checks should be carried out following installation.

Return Shipping: You will need to arrange your own shipping to get the unit sent to us, we recommend using DHL. Quoted shipping is for the return shipping via DHL Express Delivery shipping costs will be confirmed before payment completes. When you complete payment the unit will be automatically booked in to our workshop and you will receive full step by step instructions for sending the unit to us, you will also be able to track the progress of the unit at every stage using the “Track Your Part” link located at the top of most pages of our website.

REVIEWS FOR THIS PRODUCT

Mercedes C Class TCU Fault 4/5

Overall the outcome was really good, the unit has been back and installed for 2 weeks and so far so good. This has saved us thousands of pounds. A couple of negatives - the state of the job didn't change to in progress even though an engineer was working on it and had to chase. Despite asking for the part to be sent to my garage where the car was it was sent to my home and I had to work with DHL to redirect. Meant I was without car for longer.

ECU Transmission Selector 5/5

Just want to say a big thank you for the excellent service provided, from communication, collection of the part, repair, and return of the repaired item. A lifesaver as this part is no longer available for my car, either in the UK or Germany and without the repair my 18 year old car would have been consigned to the scrap heap. My car is now running better than ever. Thank you.

Simply great service 5/5

Sorry I didn't know the part number, but it was the module attached to the top of the transmission at the base of the selector shaft which was locking me out and constantly putting me in 'limp mode'. I simply sent it to you guys and you identified the problem perfectly. Once it was back in with the lifetime guarantee I was a very happy bunny and completely confident in your work. I love my old Merc' sport and am very happy to have been saved xx

Great service, great price, with a guarantee. 5/5

ECU Testing provided an efficient and cost effective solution, with a lifetime guarantee, what's not to like. Especially when a garage quotes you £670, with no guarantee! My transmission now works perfectly and I couldn't be happier.

Gear selector 5/5

Really pleased to have discovered this service. Very convenient, straight forward, quick and reasonably priced.

Gear recognition module 5/5

ECU refurbished my gear recognition module on my Mercedes c class which was not responding, but now it works perfect, many thanks ECU, Andy

RELATED PRODUCTS

Mercedes C-CLASS - OEM no

Part Number:

A0034462410 / VGS2-FCVT

Mercedes C-CLASS

Engine Size: 1.7 - 2.1

Years: 2009 - 2010

 

Mercedes C-CLASS - OEM no

Part Number:

A0335456632 / 5WP21013

Mercedes C-CLASS

Engine Size: 3.0

Years: 2004 - 2008

2 reviews

Mercedes C-CLASS - OEM no

Part Number:

A0034460310 / 5WP21302

Mercedes C-CLASS

Engine Size: 1.8 - 3.0

Years: 2004 - 2015

2 reviews

Mercedes C-CLASS - OEM no

Part Number:

A0034460610 / 5WP21305

Mercedes C-CLASS

Engine Size: 6.3

Years: 2011 - 2012