Automatic Gearbox Repair

for your Mercedes in Epsom, Surrey, UK.

Call us on

01372 274095

Fixed Price Servicing Using Genuine Mercedes Parts

Protect Your Manufacturer's Warranty

Up To 60% Cheaper Than Main Dealer Prices

Qualified Mercedes Diagnostic Technicians

Based in Ashtead, near Epsom, DDR Surrey is your local Mercedes-Benz automatic gearbox repair, reconditioning and servicing specialist.

If you need Mercedes automatic gearbox repair in Surrey, you've come to the right place. You can feel safe in the knowledge that we have the experience and specialised equipment to carry out repairs to an exceptional standard.

Some common problems you may be experiencing with your Mercedes gearbox include:

  • Gearbox dropping out of gear
  • Gearbox doesn't select gear
  • Gearbox isn't responding in drive
  • Noisy gearbox i.e. crunching when changing gears
  • A humming, whining or buzzing transmission

Automatic Gearbox fault finding is a speciality of ours. With our 'Star Diagnosis Machine' we can run a full diagnostic check of your Mercedes gearbox to find any faults relating to the transmission control module, such as a speed sensor fault or a power supply fault to the gearbox valves. We can even download the latest software for the 7 speed Mercedes gearbox.

At DDR Surrey we have the expertise and specialised equipment to repair:

  • Mercedes-Benz 5 Speed Automatic Gearbox - 722.6
  • Mercedes-Benz 7 Speed Automatic Gearbox - 722.9 - 7G-Tronic Transmission
  • Mercedes-Benz 9 Speed Automatic Gearbox - 9G-Tronic transmission
  • CVT Gearboxes - A & B-Class
  • Mercedes-Benz uses the number "722" to identify an automatic transmission.

We also have full access to Mercedes online coding, so we are able to SCN code control modules and perform control module updates from Mercedes.

How To Find Us


13 Craddocks Parade, Ashtead KT21 1QL


We are located directly at the end of Barnett Wood Lane, off the mini roundabout at the beginning of Craddocks Parade of shops. 
We are a 5-minute drive from Epsom town centre, Surrey, and Jct 9 of the M25 in the other direction.

Mercedes Gearbox Repair FAQS

What kind of problems are common with Mercedes automatic gearboxes?

There are a number of common issues with Mercedes automatic gearboxes, which we are well equipped to handle. However, issues with the Speed Sensors housed within the electro-hydraulic control module are some of the more common faults in a Mercedes automatic gearbox.

Will I need a new gearbox if it’s slipping out of gear?

You will rarely require a new gearbox if you find it is slipping out of gear. A fault like this can be caused by any number of reasons. At DDR Surrey, we can diagnose the issue using the latest equipment, repairing and replacing only the parts that require it.

Will I need a new gearbox if it’s leaking fluid?

You should always get a leaking gearbox repaired quickly. A leaking gearbox could be caused by a number of issues that usually only require a minor repair and ignoring the issue might lead to further damage. We would need to see your vehicle in order to correctly diagnose the issue.

What should I do if my Mercedes automatic gearbox isn’t working?

If your gearbox isn’t working or switching gears as you drive, this is a sign that something may need repair. Get in touch with our team, who will run full diagnostics and repair to get you back on the road as soon as possible.

Why is my Mercedes gearbox making strange noises?

If your Mercedes vehicle is making grinding, clunking or other unusual noises, this could be a sign of wear and tear. It’s important to get your vehicle booked in for diagnostics as soon as possible.

How do I know if there’s something wrong with my Mercedes gearbox?

If you’re hearing any unusual noises or if the gears aren’t switching smoothly as you drive, your automatic gearbox could need repair. We have the latest technology to help you find the source of the problem and repair it accordingly.

Do you service leased or financed Mercedes vehicles?

If you have a leased Mercedes vehicle or a Mercedes on finance that you plan to return at the end of your contract, you need to keep on top of service schedules. Failure to meet the suggested service schedule could see you facing fines and penalties at the end of your agreement, so it's vital to maintain the correct schedule. We offer full servicing to all Mercedes vehicles including leased or financed vehicles, helping you to keep on top of your service schedule and avoid any hefty fines or payouts when your contract ends.

Repairing Your Electric & Hybrid Mercedes

We repair the entire Mercedes-Benz electric and hybrid range.

Guaranteed Protection on your Manufacturer's Warranty

Is your vehicle under manufacturer's warranty? Don't worry all of your rights are preserved, we use original Mercedes-Benz parts and follow their service schedules, so we have you covered all the way.

Customer Reviews

We cover all aspects of aftersales for your vehicle from routine car servicing to fault diagnosis, electrical and mechanical repairs.

Dorking, Surrey
2nd Service on the 2018 E220cdi. A problem did arise as they sometimes do, however its the Customer Service you receive to rectify these upsets which counts. The guy I dealt with went out of his way with his own time and effort to resolve it, and in doing so has secured a long-term relationship with me in future business.
Took my ml 420 with oil leak, great blokes took time to talk over the problem and was in contact every step of the way when the work was being done . Great service great team and great blokes would recommend ddr to everyone with a merc .
Thank you again lads .
Our regular mechanic couldn't resolve the problem we had with our automatic gearbox on our Mercedes. If you get any messages on your dashboard use this garage they will resolve the problem. Very impressed with the level and care of service, would recommend without a doubt. Excellent!
Hook, Chessington
A massive thank you to the person I dealt with and his mechanic who took the time to road test my car to check out the auto box that I had concerns with. They totally put my mind at rest with their experience and advice and as usual, I went home happy with peace of mind.
Highly recommended!
Staines-upon-Thames, Surrey
I had problems with the gearbox on my car dropping out of gear and going into park. Went on line to look for a suitable place to take it to and came across DDR’s website. Read the reviews which were very positive and drove to there site in Ashtead. After discussing the problem with them and a test drive being carried out it was arranged for me to bring the car in. Left the car and later in the day received a call to say that they were unable to duplicate the problem and suggested that I drive it more and see if the problem reoccurs. On collecting the car I asked how much I owed and the reply was”nothing as we did not fix anything”. I know of other garages that charge £60:00 to plug in the test box. Also, I was virtually leaving them a blank cheque as they could have come back and say, “Oh you need a new transmission”.
I will definitely go back to them and recommend them to anyone I know that needs good honest service. Thanks guys.
Steve Haire
Woking, Surrey
Having experienced abysmal service from a Mercedes main dealer in Surrey, I was very cautious and concerned where I’d take my E250 to next. DDR Surrey was recommended to me by a friend and I have to say that every aspect of the service I received was exemplary.

They listen to the problem I reported and managed to book the car in without too much delay. The fault was identified and subsequently reported to me with the price of repair which included parts and labour. The job incurred more time than originally expected but the price remained the same.

The politeness and professionalism from the DDR team is something that other works shops should strive towards. I will definitely be using DDR Surrey in future. Highly recommended!!
New Malden, Surrey
Having purchased a 2003 Convertible CLK from a trader as a present for my mother's 70th birthday I wanted a Mercedes specialist, DDR, to check it over for full peace of mind.

Initially, I was going to have the car fully serviced as I thought it had a slight misfire. Instead, on speaking with the team at DDR, they recommended that they do a full check/diagnosis and then discuss elements that actually needed doing.

It turned out that it was actually a replacement gearbox mount that needed replacing and that removed the occasional engine vibration. Of course they picked up on a few other elements which I am sure other garages would have missed.

All in all an excellent service with everything explained to me in detail - very transparent and at a reasonable price. MB main dealers could learn something from the team at DDR.

Needless to say, the car was perfect when I got back and my mother was delighted. She has already pledged to have it serviced with DDR given my feedback about them.

Thank you to the team.
A Adams
Bookham, Surrey
Delighted to find Daniel. Have driven Mercs for 30 years and this was the best service ever.Everything explained beforehand and the car collected and returned looking immaculate and it did not break the bank.Already recommending to friends
Y Rousseau
Chessington, Surrey
We offer a professional and comprehensive service to all Mercedes vehicles. Our Mercedes trained technicians have years of experience working on Mercedes car servicing and are able to diagnose any faults. We use our expertise to ensure maintaining your vehicle is of the highest standard and of the most convenience.
Peter Peacock
Reigate, Surrey
Having to arrange serving and bespoke repairs on my E320, I was introduced to DDR by a fellow engineer,followed by two personal recommendations of the first class service and attention to detail,

Indeed the recommendation and praise by others is well deserved followed by my own for works completed to a 1st class standard,reporting on repairs, maintenance,serving in a clear understandable manner.

To say I am very very happy with service is an understatement.

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