Buying Renault Clio 4 1.5 Cdi – known deficiency will make after all more expensive and unknown deficiency, what?

Hello together, I bought the above car yesterday. EZ 10/14, 124,000 km. However, the vehicle has not yet been handed over to me because it has French papers and only had to be handed over by the TÜV. Since the air nozzle (center) 2 of the air grilles are defective (so not to be closed anymore) I have received a price discount. Also in the tender there were features/equipment which are not available. (Alufelgen – not available, CD player – not available, 6-speed- Now the vehicle was today at TÜV Rheinland and did not get a TÜV. Obviously, on one side a load joint is defective which has to be replaced. Then I researched a little bit and came up with the following:”Leading and carrying joints belong to the safety-relevant components, therefore no one should succumb to the temptation to buy such parts for 4.99 Euro. In this price range the parts consist of usually bi llige cast iron, therefore, are already at risk of breaking even with moderate load. From 15 euros there is solid branded goods; a complete crossbar including all bearings starts at 80 euros. Important: After working on wheeled parts, an axle measurement is always required! Costs: Depending on the vehicle from 70 euros. Therefore, you should always have all carrying or guide joints of an axle changed at once. If one side is defective, the second usually follows a few kilometers later. Summa summarum comes In the best case, for example with a Golf IV or V, with 200 euros of it. For models with elaborate front axles, for example with the Audi A4, one is included with complete overtaking set with about 700 euros.” I then wrote to the dealer again whether both sides are made then or whether it falls under the liability for material defects, if the other side also breaks in the foreseeable future. (So far no answer was received). Also, I found that this air nozzle does not o easy to get is except you get it directly from Renault for 300 €. Now I am thinking about whether I should/can withdraw from the purchase, since the vehicle has not really gone into my possession or how I should behave in general. Can someone give me any tips? For your help/response in advance best thanks. LG Sunny