The Denis Mahony Motor Group was founded in 1963 on Glasnevin Hill, Dublin 11. Since then the group has transformed itself into one of the leading motor retail groups in Ireland.

The group has branches in Kilbarrack and the Exit 5, M50, with a portfolio of renowned car franchises such as Toyota &amp; Lexus and the aftersales agents for Mercedes-Benz. Each branch has its own fully equipped, state of the art service department. The Denis Mahony Motor Group have their own finance company, City and County Finance, and have the rights for the Avis leasing franchise, Avis Fleet Solutions, in Ireland.

The Denis Mahony Motor Group has grown and expanded over the last 50 years but the philosophy that this company was built on remains true still to this day – Our Customer's Needs Drives Us. Whether you are seeking a quality used car or information about your next service, we have the most experienced and qualified staff members in the country available to personally look after your requirements. We are committed to providing a quality service to our customers at all times.

For any motoring queries or assistance, contact one of our branches today.

Had a fantastic experience with Gavan! They were incredibly helpful throughout the entire process — always clear, responsive and super pleasant to deal with. Communication was excellent and they made what could have been a stressful experience feel easy and smooth. Highly recommend!

We were given great help and advice when we bought our car one year ago
The first service was done and it was a very straightforward and efficient process
Every communication was courteous and helpful

We had the best experience with our Toyota rental with Dennis Mahony M50 Yuko - everything  was great with the car.
Neil was an absolute champion- he was so can do , problem solver, nothing was too much bother & he made our experience seem less & smooth. Thank you Neil!
Wouldn’t hesitate to recommend them & we would certainly rent with them again. Great service .

A five star customer experience at Denis Mahony Toyota M50. Justin and Peter are two absolute gentlemen and so professional. They went out of their way for me.
I will be back soon to trade in my car with Gavin.

Since I buy my car I have problems with this garage with over charge on the price, wrong parts, wrong registration, scratches all around the paint and more. Now after one year my car was ready for the first service 15000km, thinking is only oil change and the normal service I booked to complete the required service, my car arrives with no problem whatsoever and I have to return four times as the call me and say “ the technician forgot to secure the panel “ at my arrival they take the car and come back saying “ he forgot but was secure so is not problem”
After I left the light for Adblue tour on and a message says is not Adblue needs to fill, so I doble check my invoice and I was charged for 13.50 lts of Adblue so I call the garage asking if they genuinely as this, so I decide to return again to the garage the Answer was “ the technician forgot to connect the sensor” with this situation I have to cancel all my appointments return home and go under the car for my surprise it was Ad blue all the engine and oil leaking  I returned to the garage for the third time, I ask to speak with the manager and go under the lift to check what was the problem they come and says “ you are not believe this, the oil  filter has a leak” I say for sure I don’t believe you, I so my car at the lift and I said it was Adblue leaking they didn’t clean as the manual says And was evidently they don’t care. After 30 minutes waiting they bring my car telling me all done, but Surprised the car still with oil and Adblue on the engine they never clean or try to fix the problem properly.
The pictures are on the garage and they returned on the same condition. Not even responded the email I send as the manager is a lawyer I believe that means something anyway stay away from this people

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