{"id":3609,"date":"2024-02-15T11:14:27","date_gmt":"2024-02-15T11:14:27","guid":{"rendered":"https:\/\/www.motointegrator.pt\/blog\/\/?p=3609"},"modified":"2026-07-23T12:27:51","modified_gmt":"2026-07-23T12:27:51","slug":"alternador-gerador-de-energia-para-a-eletronica-do-veiculo","status":"publish","type":"post","link":"https:\/\/www.motointegrator.pt\/blog\/alternador-gerador-de-energia-para-a-eletronica-do-veiculo\/","title":{"rendered":"Alternador &#8211; gerador de energia para a eletr\u00f3nica do ve\u00edculo"},"content":{"rendered":"<h2>Qual \u00e9 a fun\u00e7\u00e3o do alternador?<\/h2>\n<p>Atualmente, os alternadores s\u00e3o essencialmente geradores de corrente alternada. Durante o funcionamento do ve\u00edculo, fornecem eletricidade a todos os dispositivos el\u00e9ctricos do autom\u00f3vel, incluindo os aquecedores do vidro traseiro e os sistemas de ventila\u00e7\u00e3o, que s\u00e3o os maiores consumidores de energia. At\u00e9 a unidade de controlo do motor necessita de impulsos el\u00e9ctricos para funcionar corretamente. Al\u00e9m disso, o gerador \u00e9 respons\u00e1vel por manter a bateria de arranque carregada durante a viagem ou por a carregar, se necess\u00e1rio. A bateria, como reserva de energia do ve\u00edculo, serve de apoio ao alternador e pode mesmo ser utilizada durante o arranque do autom\u00f3vel. Quando o motor de combust\u00e3o \u00e9 desligado, a bateria \u00e9 gradualmente descarregada, especialmente se forem utilizados dispositivos como o aquecimento auxiliar para viagens curtas ou se a luz de presen\u00e7a for deixada acesa. A pot\u00eancia dos <a href=\"\/produtos\/alternadores-geradores-10502\/\">geradores<\/a> \u00e9 adaptada aos consumidores presentes no ve\u00edculo.<\/p>\n<p>Nas situa\u00e7\u00f5es em que todos os dispositivos el\u00e9ctricos s\u00e3o accionados simultaneamente, a pot\u00eancia do alternador deve ser inferior em 10 %, no m\u00e1ximo, \u00e0 pot\u00eancia total requerida por todos os consumidores presentes no ve\u00edculo. Consoante o tipo de ve\u00edculo, um gerador pode produzir entre 100 e 250 amperes.<\/p>\n<h2>O que acontece quando o alternador est\u00e1 defeituoso?<\/h2>\n<p>Os geradores de corrente alternada s\u00e3o geralmente resistentes ao desgaste e de baixa manuten\u00e7\u00e3o, durando muitas vezes toda a vida \u00fatil do ve\u00edculo. No entanto, se o alternador estiver danificado, a bateria descarregar-se-\u00e1 gradualmente. A fonte de alimenta\u00e7\u00e3o em torno do alternador tem quatro pontos fracos t\u00edpicos. Em primeiro lugar, \u00e9 o pr\u00f3prio alternador que \u00e9 frequentemente danificado quando funciona a velocidades mais elevadas. Em seguida, a correia de transmiss\u00e3o, quer seja uma correia em V ou uma <a href=\"\/produtos\/correias-trapezoidais-e-correias-multi-variadas-10301\/\">correia multi-V<\/a>, pode causar problemas. At\u00e9 mesmo um tensor de correia defeituoso \u00e9 suficiente para fazer com que a correia deslize sob carga. Tamb\u00e9m \u00e9 poss\u00edvel que os conectores e cabos se partam ou corroam. Isto pode levar a problemas de contacto e, consequentemente, a perturba\u00e7\u00f5es na fonte de alimenta\u00e7\u00e3o.<\/p>\n<figure id=\"attachment_16051\" aria-describedby=\"caption-attachment-16051\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-16051 size-full\" src=\"https:\/\/www.motointegrator.pt\/blog\/wp-content\/uploads\/sites\/17\/2024\/02\/reparacao-alternador.jpg\" alt=\"Reparar um alternador defeituoso\" width=\"500\" height=\"334\" srcset=\"https:\/\/www.motointegrator.pt\/blog\/wp-content\/uploads\/sites\/17\/2024\/02\/reparacao-alternador.jpg 500w, https:\/\/www.motointegrator.pt\/blog\/wp-content\/uploads\/sites\/17\/2024\/02\/reparacao-alternador-300x200.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><figcaption id=\"caption-attachment-16051\" class=\"wp-caption-text\">\u00a9Evgrafova Svetlana\/Shutterstock<\/figcaption><\/figure>\n<p>Por fim, o regulador ou o controlador de carga acima mencionados podem tamb\u00e9m ser danificados. O alternador, essa pe\u00e7a pequena e aparentemente barata do autom\u00f3vel, \u00e9 o cora\u00e7\u00e3o da eletr\u00f3nica do ve\u00edculo. Uma falha aqui pode rapidamente desencadear uma s\u00e9rie de efeitos em cadeia que podem afetar significativamente a carteira do propriet\u00e1rio do autom\u00f3vel.<\/p>\n<h2>O que \u00e9 que significa quando a luz da bateria se acende?<\/h2>\n<p>Uma pista importante sobre o estado do alternador (gerador) est\u00e1 mesmo \u00e0 frente dos seus olhos. No painel de instrumentos do ve\u00edculo encontra-se a luz de controlo da carga. Por conseguinte, o s\u00edmbolo da bateria ou do alternador acende-se sempre quando a igni\u00e7\u00e3o \u00e9 ligada. No entanto, se piscar mesmo quando o motor est\u00e1 ao ralenti e em funcionamento, pode ser um sinal de que a corrente necess\u00e1ria n\u00e3o est\u00e1 dispon\u00edvel para os v\u00e1rios consumidores e que o sistema est\u00e1 atualmente a ser apoiado pela bateria.<\/p>\n<p>Pode verificar isto facilmente tocando brevemente no acelerador. Em muitos casos, a luz apaga-se instantaneamente e pode continuar a conduzir com tranquilidade. Se, no entanto, a luz de sinaliza\u00e7\u00e3o continuar a acender-se, pode ser uma indica\u00e7\u00e3o de que o gerador est\u00e1 avariado. Neste caso, recomenda-se que o ve\u00edculo seja verificado e reparado por um profissional.<\/p>\n<div class=\"product-slider\" style=\"--swiper-theme-color: #d80812;--swiper-navigation-size: 22px;--swiper-navigation-sides-offset: -25px;\"><div class=\"slider-title\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 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href=\"https:\/\/www.motointegrator.pt\/produto\/575063-sensor-pressao-dos-gases-de-escape-bosch-0-986-280-715\" target=\"_blank\">Sensor, press\u00e3o dos gases de escape BOSCH 0 986 280 715<\/a><p>Bosch<\/p><div class=\"price-container\"><p class=\"price\">42.89 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 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class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.pt\/produto\/530263-sensor-temperatura-do-combustivel-hella-6pt-013-113-291\" target=\"_blank\">Sensor, temperatura do combust\u00edvel HELLA 6PT 013 113-291<\/a><p>Hella<\/p><div class=\"price-container\"><p class=\"price\">13.54 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">Inclui IVA, sem portes de envio<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/rg4qizpva5xal94rklrr.jpg\" alt=\"24121\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.pt\/produto\/530428-rele-universal-meyle-014-054-0027\" target=\"_blank\">Rel\u00e9 universal MEYLE 014 054 0027<\/a><p>Meyle<\/p><div class=\"price-container\"><p class=\"price\">19.12 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">Inclui IVA, sem portes de envio<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/ubdwcv2ghz74dp5vdbw3.jpg\" alt=\"33546\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.pt\/produto\/524984-sensor-nivel-do-oleo-do-motor-akusan-k02w003akn\" target=\"_blank\">Sensor, n\u00edvel do \u00f3leo do motor AKUSAN K02W003AKN<\/a><p>Akusan<\/p><div class=\"price-container\"><p class=\"price\">16.69 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">Inclui IVA, sem portes de envio<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/poskcu7oacxvgnxsiifs.jpg\" alt=\"28493\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.pt\/produto\/641459-sensor-qualidade-do-ar-hella-6px-012-684-011\" target=\"_blank\">Sensor, qualidade do ar HELLA 6PX 012 684-011<\/a><p>Hella<\/p><div class=\"price-container\"><p class=\"price\">72.99 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">Inclui IVA, sem portes de envio<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/cstflmz2exunkqdjrzh3.jpg\" alt=\"23962\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.pt\/produto\/523344-sensor-nivel-do-oleo-do-motor-autlog-as4654\" target=\"_blank\">Sensor, n\u00edvel do \u00f3leo do motor AUTLOG AS4654<\/a><p>Autlog<\/p><div class=\"price-container\"><p class=\"price\">27.68 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">Inclui IVA, sem portes de envio<\/p><\/div><\/div><div class=\"swiper-pagination\"><\/div><div class=\"swiper-button-prev\"><\/div><div class=\"swiper-button-next\"><\/div><\/div><\/div>\n<h2>O alternador pode ser reparado?<\/h2>\n<p>Uma vez que o <a href=\"\/produtos\/motores-de-arranque-10503\/\">motor de arranque<\/a> n\u00e3o pode p\u00f4r o carro a trabalhar sem energia, recomenda-se a repara\u00e7\u00e3o imediata do alternador. O facto de isto ser poss\u00edvel depende dos danos. Em geral, n\u00e3o \u00e9 necessariamente necess\u00e1rio dirigir-se a uma oficina especializada, uma vez que, em certos casos, os entusiastas da bricolage ou as pessoas com conhecimentos autom\u00f3veis podem efetuar a repara\u00e7\u00e3o por si pr\u00f3prios. Existem tamb\u00e9m guias dispon\u00edveis na Internet que podem fornecer instru\u00e7\u00f5es. Antes de tomar uma decis\u00e3o, \u00e9 preciso considerar se \u00e9 mais barato substituir o gerador do que repar\u00e1-lo. Neste \u00faltimo caso, a <a href=\"http:\/\/motointegrator.pt\/\">Motointegrator.pt<\/a> fornecer-lhe-\u00e1 todas as <a href=\"\/s\/lp-pecas-de-substituicao\/\">pe\u00e7as sobresselentes<\/a> necess\u00e1rias de todos os fabricantes de autom\u00f3veis conhecidos. Por exemplo, an\u00e9is deslizantes, escovas de carv\u00e3o, reguladores, enrolamentos e d\u00edodos. Se necess\u00e1rio, pode tamb\u00e9m comprar e instalar um novo alternador. No entanto, se tiver d\u00favidas quanto \u00e0 causa da avaria, deve levar o seu ve\u00edculo a uma oficina.<\/p>\n<h2>Quanto custa um alternador novo?<\/h2>\n<figure id=\"attachment_16050\" aria-describedby=\"caption-attachment-16050\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-16050 size-full\" src=\"https:\/\/www.motointegrator.pt\/blog\/wp-content\/uploads\/sites\/17\/2024\/02\/alternador-novo.jpg\" alt=\"Alternador novo\" width=\"500\" height=\"413\" srcset=\"https:\/\/www.motointegrator.pt\/blog\/wp-content\/uploads\/sites\/17\/2024\/02\/alternador-novo.jpg 500w, https:\/\/www.motointegrator.pt\/blog\/wp-content\/uploads\/sites\/17\/2024\/02\/alternador-novo-300x248.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><figcaption id=\"caption-attachment-16050\" class=\"wp-caption-text\">\u00a9Sharomka\/Shutterstock<\/figcaption><\/figure>\n<p>Se o alternador estiver avariado, o custo de uma pe\u00e7a nova pode variar consoante o tipo de ve\u00edculo, o fabricante do alternador e a pot\u00eancia do alternador, oscilando entre 150 e 400 euros. Para al\u00e9m disso, h\u00e1 que ter em conta os custos de instala\u00e7\u00e3o, que podem variar entre cerca de 50 e 250 euros. Em casos extremos, os pre\u00e7os dos alternadores arrefecidos a \u00e1gua e de grande pot\u00eancia podem ultrapassar os 700 euros. Ao comprar um alternador, \u00e9 portanto importante garantir que todas as pe\u00e7as necess\u00e1rias (incluindo um novo regulador, se necess\u00e1rio) est\u00e3o inclu\u00eddas ou dispon\u00edveis para compra separada.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qual \u00e9 a fun\u00e7\u00e3o do alternador? Atualmente, os alternadores s\u00e3o essencialmente geradores de corrente alternada. Durante o funcionamento do ve\u00edculo, fornecem eletricidade a todos os dispositivos el\u00e9ctricos do autom\u00f3vel, incluindo os aquecedores do vidro traseiro e os sistemas de ventila\u00e7\u00e3o, que s\u00e3o os maiores consumidores de energia. At\u00e9 a unidade de controlo do motor necessita [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":16049,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3294,641],"tags":[3697,3703,3701,3698,3702,3699,3700],"class_list":["post-3609","post","type-post","status-publish","format-standard","has-post-thumbnail","category-automovel","category-carrossel","tag-alternador","tag-alternador-automovel","tag-alternador-avariado","tag-alternador-defeituoso","tag-custo-do-alternador","tag-ruidos-do-alternador-defeituoso","tag-sintomas-do-alternador-defeituoso"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alternador - gerador de energia para a eletr\u00f3nica do ve\u00edculo<\/title>\n<meta name=\"description\" content=\"Alternador com defeito? Pode ser reparado? 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