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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

Buy a replacement unit

20
Shipping $
Delivery 1 - 2 working days
Programming see details
Exchange item full details

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. WARNING! If you are sending your transmission module to be tested/repaired then please make sure you only send the plastic module. DO NOT send it still attached to the metal valve chest as this will destroy the module during transit. 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.

EXCHANGE ITEM

Exchange Item details (“Buy Now”): Professional level diagnostic equipment and/or specialist knowledge may be required when installing, clearing of fault codes and professional diagnostic checks should be carried out following installation. Please make sure that the part numbers on the original unit match the item you are purchasing. All “Buy Now” items are sold on an exchange basis, you will need to return the old faulty unit along with your returns form once you have fitted the replacement to the vehicle, you have 14 days (10 working days) to return the old faulty unit. Your Lifetime* warranty will be activated upon receipt of the old unit. If the old faulty unit is not returned to us then your warranty will be void (No exceptions). It is your responsibility to cover the cost of posting the old faulty unit back to us.

Delivery: 1 - 2 working days

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

This unit is coded, upon installation it will require resetting and then coding to the vehicle using relevant “dealer level” diagnostic equipment. If you are unable to do this then we may be able to transfer the coding from your old faulty unit, please contact us if you are unsure.

Professional level diagnostic equipment will be required when installing. Clearing of fault codes and professional diagnostic checks should be carried out following installation.

Shipping: Purchases will be charged a core charge of $90 – this is refunded back to you in receipt of your old faulty unit. It is your responsibility to cover the cost of posting your old faulty unit back to us.

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

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