We bought the Mercedes E Class on Saturday 1st August 2020 from Drive Right Luton. Car was sold as a fit for purpose, working car! 2 days after we bought the car it went into limp mode and begun to struggle to start. We took the car to Halfords for a diagnosis. They first diagnosed that one of the glow plugs was broken. The car now would not start at all on its own. The Autoguard warranty Drive Right sold with the car but did not cover this. We had the glow plugs replaced to a cost of £348 to us. We were advised to buy a new battery for the car which we did costing £70. The car still would not start. We were advised after another diagnostic test costing £60 to take to a diesel engine specialist. They diagnosed that the fuel injectors need replacing to the cost of £1750. Autoguard do not cover this. Under the consumer rights act 2015 we had the right to ask for a repair, refund or replacement from the dealership. We have not been able to use this car at all since leaving the forecourt. Eventually, we managed contact with the manager who agreed a meeting. As we had tried so hard to fix the problems ourselves the time gap from buying the car meant he now said he only by law needed to try and fix the car not give a full refund. He also stated that it wasn't the fuel injectors and when I tried to give him the photocopied diagnosis from the Specialist Garage to keep he refused to take it. We took the car in on 18th September 2020. As the car was taking so long I asked the manager again on 25/01/21 for a refund stating again that it was obvious the car was unfit for purpose. He replied stating he was very unwell and out of the country but we would have our car the week of 25/01/21. On the internet Drive Right continued to be selling cars at this time. Over the difficult period of the global pandemic we were more than patient and understanding however the car was being 'repaired' for 5 months. After over 30 phone calls discussing progress over the 5 months to the mechanics (on the same road as Drive Right) asking when the car would be ready and driving up to Luton from Essex last week to be turned away again now being told they had finally realised it was the fuel Injectors! We finally picked the car up today on the 16th February 2021! On the way home the car cut out twice whilst on the motorway, the engine light came on and it is leaking diesel everywhere. I don't have to actually state to be cautious. It says it all above. I just wouldn't risk it!