The Repair Process

The automatic transmission itself is a very complex component and the most essential one in the car. The transmission is responsible for shifting gears to dynamically change the speed-toque in order to deliver power to the wheels in an efficient manner based on the speed of the vehicle. And that is the reason why automatic transmission repair is such a delicate process and need high levels of knowledge and professionalism.

Highly Experienced Team

M&D Auto has been providing quality automatic gearbox repairs since 2007, but we have more than 25 years experience in the automotive industry. With a team of highly experienced automatic transmission specialists, we pride ourselves on our friendly and professional service and as a result, our workshop has become a preferred repairer to top workshops in Bulgaria, Romania and Macedonia. We provide quality gearbox repairs and we provide it at a great price.

Direct Importer

Being a direct importer of spare parts from leading manufacturers in the world we are able to provide quick repair solutions at very competitive prices. We have a wide range of stock with more than 6000 part numbers.

Up To Date Diagnostic Tools

M&D Auto offer its customers the most up to date diagnostic tools. Diagnosing automatic gearbox faults is the first stage in establishing the root cause of a gearbox failure. To do this we need to run a scan of the transmission control unit (TCU) to obtain stored information within it. This will tell us if the vehicle gearbox has an electronic fault, or if a slip code is presently relating to a possible hydraulic or mechanical problem. Today’s automatic gearboxes are highly complex, and since the introduction of fully electronic computer-controlled systems, we have seen a huge increase in the need for specialist diagnostic machinery. All of this help us define the problem and lead us to right solution and repair.

MiD Collate Repair


What is good to know

Symptoms of automatic transmission problems:

  • The transmission is slipping between the gears.
  • A weird noise coming from the transmission.
  • Transmission fluid has a burning colour or smell.
  • Grinding or shaking when shifting between the gears.
  • Lack of response or delay when shifting to D or R.
  • Delay when changing the gears.

Automatic transmission repair procedure:

  1. Disassembly and carefully and completely tearing down the transmission.
  2. Replacing the parts that caused the problems in the transmission and cleaning all of the rest that will be used in the re-assembly.
  3. Remanufacturing the torque converter.
  4. Valve body repair.
  5. Change of the transmission fluid and oil filter.
  6. Assembling the transmission parts, inspection, cleaning the transmission cooling system and modifying it with the new computer updates.
MiD Automat Repair

What are our prices?


from 480lv. with VAT


from 480lv. with VAT

All other prices of parts used in the rebuilding process depend on the type of the transmission and the problem in it.