{"product_id":"jaguar-xjs-facelift-cac6853-power-steering-fluid-bottle-expansion-tank-1992-4-0","title":"Jaguar XJS Facelift CAC6853 Power Steering Fluid Bottle Expansion Tank 1992 4.0","description":"\u003cp\u003e#85\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine used Jaguar XJS Facelift 4.0 power steering fluid reservoir \/ bottle, part number CAC6853, removed from a 1992 Jaguar XJS 4.0.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis reservoir forms part of the hydraulic power-steering system and provides the fluid storage and supply point for the power-steering pump. It should not be confused with the engine coolant expansion\/header tank.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePart Number: CAC6853\u003c\/p\u003e\u003cp\u003eJaguar OE Number: CAC6853\u003c\/p\u003e\u003cp\u003ePart Type: Power Steering Fluid Reservoir \/ Power Steering Bottle \/ Hydraulic Fluid Tank\u003c\/p\u003e\u003cp\u003eSystem: Hydraulic Power Steering\u003c\/p\u003e\u003cp\u003eApplication: Jaguar XJS 6-Cylinder\u003c\/p\u003e\u003cp\u003eDonor Vehicle: 1992 Jaguar XJS Facelift\u003c\/p\u003e\u003cp\u003eDonor Engine: 4.0-Litre Inline 6-Cylinder\u003c\/p\u003e\u003cp\u003ePosition: Engine Bay\u003c\/p\u003e\u003cp\u003eManufacturer: Jaguar\u003c\/p\u003e\u003cp\u003eCondition: Genuine used OEM part\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCompatibility\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eSuitable for selected Jaguar applications using CAC6853, including:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Jaguar XJS \/ XJ-S 3.6\u003c\/p\u003e\u003cp\u003e* Jaguar XJS Facelift 4.0\u003c\/p\u003e\u003cp\u003e* Selected Jaguar XJ40 applications using the same reservoir\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eJaguar XJS parts data identifies CAC6853 as the power-steering reservoir for the 3.6 \/ 4.0 six-cylinder power-steering system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis listing’s component was removed from a:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e1992 Jaguar XJS Facelift 4.0\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBecause catalogue year ranges for CAC6853 vary between suppliers, buyers with early facelift\/1992 vehicles should compare the original reservoir carefully before ordering.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eImportant – Power Steering Reservoir\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis is a:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePOWER STEERING FLUID RESERVOIR\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIt is not the engine coolant expansion\/header tank.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOn the 4.0 XJS, the reservoir stores hydraulic fluid for the power-assisted steering system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUseful search descriptions for this component include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Power Steering Reservoir\u003c\/p\u003e\u003cp\u003e* Power Steering Fluid Bottle\u003c\/p\u003e\u003cp\u003e* PAS Fluid Reservoir\u003c\/p\u003e\u003cp\u003e* PAS Tank\u003c\/p\u003e\u003cp\u003e* Steering Hydraulic Fluid Reservoir\u003c\/p\u003e\u003cp\u003e* Power Steering Expansion Tank\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e“Expansion tank” is sometimes used informally in used-parts listings, but power steering reservoir is the technically correct description.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTechnical Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe hydraulic power-steering system uses pressurised fluid to provide assistance at the steering rack.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe system includes components such as:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Power steering fluid reservoir\u003c\/p\u003e\u003cp\u003e* Power steering pump\u003c\/p\u003e\u003cp\u003e* Reservoir-to-pump hose\u003c\/p\u003e\u003cp\u003e* High-pressure steering hose\u003c\/p\u003e\u003cp\u003e* Low-pressure return hose\u003c\/p\u003e\u003cp\u003e* Steering rack\u003c\/p\u003e\u003cp\u003e* Associated seals and connections\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe reservoir itself is on the low-pressure side of the hydraulic circuit.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFluid is supplied from the reservoir to the power-steering pump. The pump then pressurises the hydraulic fluid and sends it to the steering rack.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAfter assisting the steering mechanism, the fluid returns through the low-pressure circuit to the reservoir.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRelated Jaguar References\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor the six-cylinder XJS steering system, associated Jaguar references include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCAC6853\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Power steering reservoir\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eJLM2162\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Power steering reservoir filler cap\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eMHD3980AA\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Reservoir-to-pump low-pressure hose\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOther steering hoses differ depending on vehicle specification and RHD\/LHD configuration.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCommon Reasons for Replacement\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTypical reasons for replacing the reservoir include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Reservoir cracked\u003c\/p\u003e\u003cp\u003e* Plastic becoming brittle with age\u003c\/p\u003e\u003cp\u003e* Broken hose connection\u003c\/p\u003e\u003cp\u003e* Damaged hose outlet\/nipple\u003c\/p\u003e\u003cp\u003e* Fluid leaking around reservoir\u003c\/p\u003e\u003cp\u003e* Damaged filler neck\u003c\/p\u003e\u003cp\u003e* Reservoir mounting point damaged\u003c\/p\u003e\u003cp\u003e* Contamination inside reservoir\u003c\/p\u003e\u003cp\u003e* Reservoir damaged during engine-bay work\u003c\/p\u003e\u003cp\u003e* Previous incorrect repair\u003c\/p\u003e\u003cp\u003e* General age-related deterioration\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBecause these reservoirs are now several decades old, the plastic should be handled carefully during removal and installation.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eImportant Hose Connection Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePay particular attention to the hose outlets on the reservoir.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAge, engine-bay heat and repeated hose removal can make the plastic connections brittle.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInspect for:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hairline cracks\u003c\/p\u003e\u003cp\u003e* Split outlet necks\u003c\/p\u003e\u003cp\u003e* Previous adhesive repairs\u003c\/p\u003e\u003cp\u003e* Distortion\u003c\/p\u003e\u003cp\u003e* Damage around hose clips\u003c\/p\u003e\u003cp\u003e* Fluid staining around connections\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not overtighten hose clamps against an aged plastic outlet.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCommon Power Steering Symptoms\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA reservoir or associated hydraulic-system problem may result in:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Visible power-steering fluid leak\u003c\/p\u003e\u003cp\u003e* Falling fluid level\u003c\/p\u003e\u003cp\u003e* Fluid around reservoir\u003c\/p\u003e\u003cp\u003e* Fluid around hose connections\u003c\/p\u003e\u003cp\u003e* Power steering pump whining\u003c\/p\u003e\u003cp\u003e* Foaming\/aerated fluid\u003c\/p\u003e\u003cp\u003e* Heavy steering\u003c\/p\u003e\u003cp\u003e* Intermittent steering assistance\u003c\/p\u003e\u003cp\u003e* Fluid contamination\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, these symptoms do not automatically mean the reservoir itself is faulty.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eImportant Diagnostic Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the vehicle is losing power-steering fluid, inspect the complete hydraulic system before replacing the reservoir.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCheck:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* CAC6853 reservoir\u003c\/p\u003e\u003cp\u003e* Reservoir cap\/seal\u003c\/p\u003e\u003cp\u003e* Reservoir hose outlets\u003c\/p\u003e\u003cp\u003e* Reservoir-to-pump hose\u003c\/p\u003e\u003cp\u003e* Low-pressure return hose\u003c\/p\u003e\u003cp\u003e* High-pressure hose\u003c\/p\u003e\u003cp\u003e* Hose clamps\u003c\/p\u003e\u003cp\u003e* Power steering pump\u003c\/p\u003e\u003cp\u003e* Steering rack\u003c\/p\u003e\u003cp\u003e* Hydraulic connections\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFluid around the reservoir can sometimes originate from a leaking hose or connection rather than a crack in the reservoir itself.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePump Noise \/ Foaming Fluid\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the power-steering pump is whining or the fluid is foaming, check for:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low fluid level\u003c\/p\u003e\u003cp\u003e* Air entering the hydraulic system\u003c\/p\u003e\u003cp\u003e* Loose hose connection\u003c\/p\u003e\u003cp\u003e* Cracked suction hose\u003c\/p\u003e\u003cp\u003e* Restricted fluid supply\u003c\/p\u003e\u003cp\u003e* Incorrect fluid\u003c\/p\u003e\u003cp\u003e* Pump wear\u003c\/p\u003e\u003cp\u003e* Contaminated fluid\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAir entering the suction side of the system can cause pump noise even when an obvious external leak is not present.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eReservoir Inspection\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore installation, inspect the used reservoir carefully for:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Cracks\u003c\/p\u003e\u003cp\u003e* Splits\u003c\/p\u003e\u003cp\u003e* Damaged mounting points\u003c\/p\u003e\u003cp\u003e* Damaged filler neck\u003c\/p\u003e\u003cp\u003e* Damaged hose connections\u003c\/p\u003e\u003cp\u003e* Previous repairs\u003c\/p\u003e\u003cp\u003e* Excessive contamination\u003c\/p\u003e\u003cp\u003e* Distortion\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe hose outlets are particularly important because damage in these areas can cause hydraulic-fluid leakage.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInstallation\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore fitting:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Compare CAC6853 with the original reservoir\u003c\/p\u003e\u003cp\u003e* Compare overall shape\u003c\/p\u003e\u003cp\u003e* Compare mounting points\u003c\/p\u003e\u003cp\u003e* Compare filler neck\u003c\/p\u003e\u003cp\u003e* Compare hose outlet positions\u003c\/p\u003e\u003cp\u003e* Compare hose outlet diameters\u003c\/p\u003e\u003cp\u003e* Inspect connecting hoses\u003c\/p\u003e\u003cp\u003e* Inspect hose clamps\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWhen installing:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Secure the reservoir correctly\u003c\/p\u003e\u003cp\u003e* Connect hoses to the correct outlets\u003c\/p\u003e\u003cp\u003e* Avoid excessive force on plastic connections\u003c\/p\u003e\u003cp\u003e* Use suitable hose clamps\u003c\/p\u003e\u003cp\u003e* Refill with the correct specified power-steering fluid\u003c\/p\u003e\u003cp\u003e* Check the hydraulic system for leaks\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePower Steering System Bleeding\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the reservoir or hydraulic hoses have been disconnected, air may enter the power-steering system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAfter installation, the system should be filled and bled using the correct Jaguar workshop procedure.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDuring initial testing:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Monitor fluid level\u003c\/p\u003e\u003cp\u003e* Check for foaming\u003c\/p\u003e\u003cp\u003e* Listen for abnormal pump noise\u003c\/p\u003e\u003cp\u003e* Inspect all connections for leaks\u003c\/p\u003e\u003cp\u003e* Check steering assistance\u003c\/p\u003e\u003cp\u003e* Recheck fluid level after air has been removed\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not allow the power-steering pump to run without adequate fluid.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProgramming \/ Coding\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eNo programming or coding is required.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis is a mechanical\/hydraulic power-steering component.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eImportant Compatibility Note\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePlease compare before ordering:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Jaguar OE number – CAC6853\u003c\/p\u003e\u003cp\u003e* Reservoir shape\u003c\/p\u003e\u003cp\u003e* Filler-neck design\u003c\/p\u003e\u003cp\u003e* Hose outlet positions\u003c\/p\u003e\u003cp\u003e* Hose outlet diameters\u003c\/p\u003e\u003cp\u003e* Mounting points\u003c\/p\u003e\u003cp\u003e* Original reservoir\u003c\/p\u003e\u003cp\u003e* Engine configuration\u003c\/p\u003e\u003cp\u003e* Vehicle production\/VIN where necessary\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe XJS parts catalogue identifies CAC6853 for 3.6\/4.0 applications, but some specialist catalogues give narrower production-year ranges for the 4.0 XJS.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor this reason, particularly on a 1992 XJS 4.0, matching the CAC6853 number and physical reservoir configuration with the original component is strongly recommended.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCondition\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine used Jaguar power-steering fluid reservoir.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRemoved from a 1992 Jaguar XJS Facelift 4.0.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAs a used engine-bay component, normal signs of previous use and age may include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Surface marks\u003c\/p\u003e\u003cp\u003e* Scratches\u003c\/p\u003e\u003cp\u003e* Dirt\u003c\/p\u003e\u003cp\u003e* Oil\/fluid residue\u003c\/p\u003e\u003cp\u003e* Discolouration\u003c\/p\u003e\u003cp\u003e* General installation\/removal marks\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePlease inspect all listing photographs carefully, particularly the:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hose outlets\u003c\/p\u003e\u003cp\u003e* Filler neck\u003c\/p\u003e\u003cp\u003e* Reservoir body\u003c\/p\u003e\u003cp\u003e* Mounting points\u003c\/p\u003e\u003cp\u003e* Seams\u003c\/p\u003e\u003cp\u003e* Plastic connections\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFiller cap is included only if clearly shown in the listing photographs.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOnly the reservoir and associated components clearly shown in the photographs are included.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAny identifying colour\/security markings applied to the part must remain intact in the event of a return.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIdeal genuine replacement for a cracked, leaking, brittle or damaged Jaguar XJS 3.6 \/ 4.0 power-steering fluid reservoir, provided CAC6853 matches the original component.\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Jaguar\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Jaguar\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e CAC6853\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMPN:\u003c\/strong\u003e CAC6853 , CAC 6853\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United Kingdom\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Jaguar","offers":[{"title":"Default Title","offer_id":54934281650503,"sku":"158271200631","price":100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/1528\/3527\/files\/10_e823208b-c876-49cc-875c-2bb95a645958.jpg?v=1788880046","url":"https:\/\/spares4repairs.store\/products\/jaguar-xjs-facelift-cac6853-power-steering-fluid-bottle-expansion-tank-1992-4-0","provider":"Spares 4 Repairs","version":"1.0","type":"link"}