X4 warranty standard exchanges injectors 12 months. For more information feel free to contact me 0783570304. Injector assembly created for optimal mounting the injectors door, it is necessary to ensure / to change the tube hp compliance clamping applying electrical connection tightening torques & return circuit gf also check the status of the fuel filter pollution diesel presence in filings pump out carbon deposits on injectors wells in the breech the door in exchange cr injectors repairs or new show in the majority cases to contamination by external pollution (because there is non-compliance with recommendations on what components) in case of warranty it can be effective only if the statement above rules have been respected in the case of guaranteed proof of purchase hp tube you may be requested. The item \power \ parts for injectors \The seller is \This item can be shipped to the following countries: Europe.