Share this on: How to remove and install HPIV and HPP Treating high-pressure injection valves properly enables them to be repaired effectively Repair of high-pressure injection system components Bosch supplies spare parts and special tools for the repair of the high pressure injection systems. ESI[tronic] Evolution gives a complete diagnostic sequence to be followed with installation instructions including measurement values, fault patterns and even signal images. With this sort of help from Bosch’s detailed instruction manual, spare parts and special tools, it is a relatively easy task to remove or replace high-pressure injection valves and combustion chamber seals. Removal and installation of high-pressure injection valve (HPIV) Read ESI[tronic] Evolution instructions carefullyUse appropriate tools to remove HPIV and replace the combustion chamber sealAvoid damage to the valve tip (valve leakage)Prevent the ingress of foreign bodies and dirt during installationIf the HPIV is to be reused, never use impact tools during the installation of the HPIV into the cylinder headDo not apply oil or grease to the white Teflon sealApply a thin coat of clean, silicone-free engine oil to the blue seal before installing the fuel railWhen removing and reusing the HPIV, always replace the specified spare parts (service kits) For more tips and information on the used tools and spare parts, please read the full article at the end ‘Step by step’ removal and installation instructions for HPIV and HPP Bosch installation instructions - Gasoline high-pressure injector Bosch installation instructions - High-pressure injection pump YouTube YouTube DownloadFull article Download the full article here Download article (PDF) Further topics Product catalogues Auto Parts and accessoriesRead more Promotions & News about Mobility AftermarketRead more Diagnostic Solutions from BoschRead more