Timing chain
Many modern cars are equipped with timing chain system nowadays due to variable engine timing system, better performance and emissions regulation. As long as the routine maintenance is done on time, timing chain should last as long as the vehicle. However, there are some models or engines that are more prone to timing chain problems which are BMW N20 engines, or Volkswagen Audi 2.0 Turbo engines. Here are some pictures of BMW N20 engine which is equipped on 3 series 328xi 320i or 5 series 528xi 528i 520i timing chain replacement on BMW could cost 2000$ to 3000$ depending on how many chains we are changing or guides, oil gaskets, sealing and flushes.