{"id":528,"date":"2026-08-18T14:36:38","date_gmt":"2026-08-18T13:36:38","guid":{"rendered":"https:\/\/www.rangeroverenginespecialist.co.uk\/blog\/?p=528"},"modified":"2026-08-18T14:36:39","modified_gmt":"2026-08-18T13:36:39","slug":"range-rover-p400-hybrid-engine-replacement-cost","status":"publish","type":"post","link":"https:\/\/www.rangeroverenginespecialist.co.uk\/blog\/range-rover-p400-hybrid-engine-replacement-cost\/","title":{"rendered":"Why might a Range Rover P400 Hybrid lose power or fail to switch between electric and petrol modes?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">If your <a href=\"https:\/\/www.rangeroverenginespecialist.co.uk\/reconditioned\/Rangerover\/P400-Hybrid\/engines\"><strong>Range Rover P400 Hybrid<\/strong><\/a> suddenly loses power, gets stuck in petrol-only mode, or refuses to switch to electric drive, the cause is usually a fault in the hybrid control system, the 48-volt or high-voltage battery, or the petrol engine itself rather than one single part. At Range Rover Engine Specialist in Grays, we diagnose and replace these units every week, so this guide explains exactly why it happens, what an <strong>engine replacement<\/strong> costs in the UK, and how our supply and fit services and engine rebuild process get you back on the road.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Range Rover P400 Hybrid Engine Overview<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Range Rover P400 Hybrid<\/strong> name covers the plug-in hybrid range built around the 2.0-litre Ingenium turbo petrol engine, factory engine code 204PT, paired with an electric motor and high-voltage battery pack. This drivetrain lets the vehicle run in pure EV mode, petrol-only mode, or a blended hybrid mode, and it is the switching logic between these three states that most commonly fails. A related but distinct unit, the mild-hybrid 3.0-litre inline-six petrol also badged P400, uses a 48-volt system rather than a plug-in battery. Both share the &#8220;P400&#8221; name, so confirming your exact <a href=\"https:\/\/www.rangeroverenginespecialist.co.uk\/range-rover-engines\"><strong>Range Rover engine<\/strong><\/a> code before ordering parts is essential.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Range Rover P400 Hybrid Engine Specifications<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 204PT petrol unit in the P400e\/P440e plug-in hybrid is a 1,997cc turbocharged four-cylinder producing around 296bhp on its own, combined with an electric motor to deliver a total output of roughly 398-434bhp depending on model year, and up to 640Nm combined torque. It runs alongside an 8-speed automatic gearbox, a liquid-cooled high-voltage battery, and a DC-DC converter that manages the 48-volt ancillary systems. Every <strong>Range Rover engine for sale<\/strong> we supply is code-match to your VIN before dispatch. The table below sets out the wider Range Rover petrol hybrid line-up for quick reference.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Model Variant<\/strong><\/td><td><strong>Engine Code<\/strong><\/td><td><strong>Combined Power<\/strong><\/td><td><strong>Drive Modes<\/strong><\/td><\/tr><tr><td>P400 (MHEV)<\/td><td>306PT<\/td><td>400PS<\/td><td>Petrol + 48V assist only<\/td><\/tr><tr><td>P400e (PHEV)<\/td><td>204PT<\/td><td>398bhp<\/td><td>EV \/ Petrol \/ Hybrid<\/td><\/tr><tr><td>P440e (PHEV)<\/td><td>204PT<\/td><td>434bhp<\/td><td>EV \/ Petrol \/ Hybrid<\/td><\/tr><tr><td>P510e (PHEV)<\/td><td>204PT<\/td><td>503bhp<\/td><td>EV \/ Petrol \/ Hybrid<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Range Rover P400 Hybrid Engine Replacement Costs in UK<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Engine replacement costs in UK workshops for the P400 Hybrid vary depending on whether the fault sits in the petrol engine, the electric motor, or the battery pack, and whether you choose used, reconditioned or new components. A supply and fitt use 204PT engine typically starts from around \u00a33,500-\u00a35,000, a full recondition unit with warranty usually runs \u00a35,500-\u00a38,500, and dealership-fitt new engines can exceed \u00a310,000 once labour and hybrid system diagnostics are include. A proper diagnostic check first is essential here, because a stuck hybrid mode is sometimes a software or sensor fault costing a few hundred pounds rather than a full engine replacement, so always get the fault confirm before committing to a quote.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Reconditioned Engines vs Used Engines: Which Should You Choose?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing between <a href=\"https:\/\/www.reconditionedjlrengine.co.uk\/\"><strong>reconditioned JLR engines<\/strong><\/a> and used engines matters even more on a hybrid, since the petrol engine works alongside sensitive electrical components. Used engines are remove from donor vehicles, tested, and sold as-is, offering the lowest upfront cost but less certainty over remaining service life. Reconditioned engines are fully stripped, inspected, and rebuilt with new pistons, bearings, seals and gaskets, giving significantly better long-term reliability and a proper warranty. This is the real comparison behind reconditioned engines vs used engines: a used unit suits a quick, budget-friendly fix, while a reconditioned engine suits owners planning to keep their Range Rover for several more years of dependable driving.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Our Supply and Fit Services and Engine Rebuild Process<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Our supply and fit services take the stress out of hybrid engine replacement from start to finish. Once you confirm your VIN and engine code, we source the correct used, reconditioned, or rebuilt 204PT or 306PT unit and arrange professional fitting through our approved network. Every engine rebuild follows a strict sequence: full strip-down, cylinder head inspection, new timing chain and tensioners, fresh gaskets and seals, and a complete hybrid system check before the vehicle is signed off. We manage the old engine removal, hybrid battery safety checks, and final road test, so you simply book your Range Rover in and collect it once everything is verified working correctly.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Common P400 Hybrid Problems and Solutions<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The most common cause of lost power or failure to switch modes is a weakened or faulty high-voltage battery pack, which prevents the system from confidently switching into EV mode and forces it into petrol-only limp mode. A failing DC-DC converter or 48-volt battery can cause similar symptoms with sudden power loss at low speed. Software glitches in the hybrid control module sometimes get mistake for hardware failure, so a full diagnostic scan should always come first. Carbon build-up on the 204PT intake valves and turbo wastegate faults can also reduce petrol-mode performance. Addressing these issues early, with proper diagnostics, usually prevents the need for a full engine replacement later.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Nationwide Logistics and Delivery Across the UK<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Range Rover Engine Specialist is based in Grays, Essex, with quick access to the M25, A13 and Dartford Crossing for fast nationwide logistics. We run a dedicated courier network delivering used, reconditioned and rebuilt engines securely across England, Scotland and Wales, with every engine palletised, protected and tracked from despatch to your garage or driveway. If you would rather we handle the whole job, our supply and fit services include collection and delivery logistics as standard, so your Range Rover stays under professional care throughout. Local Grays and Essex customers can also book direct workshop drop-off for the fastest possible turnaround.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Buy Your Range Rover Engine From Range Rover Engine Specialist<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When you buy or shop for a <a href=\"https:\/\/www.enginesolutionsltd.co.uk\/\"><strong>Range Rover engine for sale<\/strong><\/a>, working with true hybrid specialists matters far more than chasing the cheapest listing online. Range Rover Engine Specialist tests every unit, code-matches it to your VIN, and backs reconditioned engines with a genuine warranty. We offer No Upfront Charges and No Deposit Required on qualifying orders, so you only pay once you are happy with the quote and scheduled work. Whether you want to buy a used 204PT engine, shop for a reconditioned rebuild, or arrange full supply and fit, our Grays-based team is ready to guide you through the whole process with clear, honest pricing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Why does my Range Rover P400 Hybrid lose power suddenly?<\/strong>&nbsp;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is usually a weak high-voltage battery, 48V fault, or DC-DC converter issue forcing the car into limp mode.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Why won&#8217;t my P400 Hybrid switch to electric mode?<\/strong>&nbsp;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A low or degraded battery, software fault, or sensor error commonly stops the system engaging EV mode.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What engine code does the Range Rover P400 Hybrid use?<\/strong>&nbsp;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The PHEV models use engine code 204PT, a 2.0-litre turbo petrol paired with an electric motor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How much does a Range Rover P400 Hybrid engine replacement cost?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;Prices typically range from \u00a33,500 for a used engine to \u00a38,500+ for a reconditioned unit, supplied and fitted.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Does Range Rover Engine Specialist require a deposit?<\/strong>&nbsp;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No, we offer No Upfront Charges and No Deposit Required on qualifying orders before work begins.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If your Range Rover P400 Hybrid suddenly loses power, gets stuck in petrol-only mode, or&#8230;<\/p>\n","protected":false},"author":1,"featured_media":529,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[17,8,10,4,41,12,9],"class_list":["post-528","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-range-rover-engine-repairs-replacement-guides","tag-range-rover-5-0l-engine","tag-range-rover-engine","tag-range-rover-engine-3-0-l","tag-range-rover-engine-specialist","tag-range-rover-p400-hybrid","tag-reconditioned-engine","tag-reconditioned-range-rover-engine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Range Rover P400 Hybrid Engine Replacement Cost<\/title>\n<meta name=\"description\" content=\"Buy a Range Rover P400 Hybrid engine at Range Rover Engine Specialist, Grays. 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