{"product_id":"vw-brake-master-cylinder-pressure-sensor-3-pin-golf-mk4-polo-bora-jetta-lupo-sha","title":"Brake Pressure Sensor – VW Golf Mk4 Polo Bora Jetta Lupo Sharan – 1J0907597B","description":"\u003cp\u003eGet your Volkswagen back to correct ABS, ESP and electronic stability control function with this replacement brake pressure sensor, also referenced in service manuals as the ESP pressure sensor or master cylinder pressure sensor. Built to OEM specification, matching 55CP15-01, 55CP14-02, 1.J0.907.597.B, 10.0522-9960 and 1J0907597. Also fits equivalent Audi, Seat and Skoda models.\u003c\/p\u003e\n\u003ch3\u003eCommon signs of failure\u003c\/h3\u003e\n\u003cp\u003eA failing brake pressure sensor typically triggers ABS, ESP and traction control warning lights together, with fault codes around the brake pressure circuit (manufacturer-specific). Drivers report the hill-hold function failing, electronic parking brake errors on some models, and the stability\/traction systems disabled. Braking itself still works mechanically, but the active safety systems that depend on knowing pressure-on-the-pedal are offline.\u003c\/p\u003e\n\u003ch3\u003eFitment notes\u003c\/h3\u003e\n\u003cp\u003eDirect-fit replacement, threaded into the ABS hydraulic module or master cylinder. The brake system will need bleeding after fitting to remove any air introduced during the swap — use the correct DOT-rated fluid. Clear codes with a scanner after installation. Standard 3 pin connector.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWill I lose my brakes if this sensor fails?\u003c\/h4\u003e\n\u003cp\u003eNo — mechanical braking is unaffected. The fault disables electronic assistance (ABS, ESP, hill-hold) but you can still stop the car using the brake pedal normally.\u003c\/p\u003e\n\u003ch4\u003eDo I need to bleed the brakes after fitting?\u003c\/h4\u003e\n\u003cp\u003eYes — any time a brake hydraulic component is removed, bleed the system to remove trapped air. Most modern ABS systems also benefit from a scanner-driven bleed sequence.\u003c\/p\u003e\n\u003ch4\u003eWill the warning lights clear automatically?\u003c\/h4\u003e\n\u003cp\u003eAfter fitting and bleeding, clear codes with an OBD2 scanner. On most vehicles a short drive above 12 mph will then reset the ABS\/ESP modules.\u003c\/p\u003e","brand":"PitShopUK","offers":[{"title":"Default Title","offer_id":57283711795544,"sku":"191","price":45.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/3373\/0136\/files\/SKU191_55CP15-06_updated_bb00c10f-edae-4032-80c8-5d4a03218a61.jpg?v=1781003614","url":"https:\/\/carpartclubs.com\/products\/vw-brake-master-cylinder-pressure-sensor-3-pin-golf-mk4-polo-bora-jetta-lupo-sha","provider":"CarPartClubs","version":"1.0","type":"link"}