Vanliga besiktningsfel

Varje år underkänns hundratusentals bilar vid besiktning i Sverige. Många av felen är enkla att åtgärda i förväg. Här är de 10 vanligaste anmärkningarna.

1. Bromsar (30% av anmärkningarna)

Det vanligaste felet. Slitna bromsbelägg, rostiga bromsskivor eller ojämn bromskraft. Åtgärd: Byt bromsbelägg (1 500–3 000 kr) och bromsskivor vid behov.

2. Belysning (20%)

Trasiga lampor, felaktig inställning av helljus/halvljus. Åtgärd: Kontrollera ALLA lampor innan besiktning — blinkers, bromsljus, helljus, halvljus, skyltbelysning, dimljus.

3. Stötdämpare (12%)

Läckande eller slitna stötdämpare. Gör studstest: tryck ner bilhörnet och släpp — bilen ska studsa max en gång. Åtgärd: Byte kostar 3 000–8 000 kr per axel.

4. Avgassystem (10%)

Läckage i avgasrör, trasig katalysator, höga utsläppsvärden. Åtgärd: Laga läckor, byt katalysator vid behov (kan vara dyrt: 5 000–15 000 kr).

5. Styrled och länkarm (8%)

Glapp i styrleder eller länkarmar. Märks ofta som lös styrning eller vibrationer. Åtgärd: Byte kostar 1 500–4 000 kr per sida.

6. Vindrutetorkare (6%)

Slitna torkarblad som inte torkar rent. Åtgärd: Byt torkarblad — kostar bara 100–300 kr och tar 5 minuter.

7. Däck (5%)

För lite mönsterdjup (under 1,6 mm) eller skadade däck. Åtgärd: Mät mönsterdjupet och byt om det är under 3 mm.

8. Rostskador (4%)

Rost på bärande delar (balkar, trösklar). Svårt att laga och kan kräva svetsning. Åtgärd: Förebygg med rostskyddsbehandling (1 500–3 000 kr).

9. Vindruta (3%)

Sprickor i siktfältet framför föraren. Åtgärd: Byt eller laga — stenskott kan ofta lagas för 300–500 kr. Byte kostar 3 000–8 000 kr.

10. Bränsleläckage (2%)

Läckage från bränsleledningar eller tank. Farligt och ger direkt underkänt. Åtgärd: Reparera hos verkstad.

4:["slug","vanliga-besiktningsfel","d"] 0:["DE4gW13on-IBSprDLdogo",[[["",{"children":["guide",{"children":[["slug","vanliga-besiktningsfel","d"],{"children":["__PAGE__?{\"slug\":\"vanliga-besiktningsfel\"}",{}]}]}]},"$undefined","$undefined",true],["",{"children":["guide",{"children":[["slug","vanliga-besiktningsfel","d"],{"children":["__PAGE__",{},[["$L1",[["$","div",null,{"className":"container breadcrumbs","children":[["$","a",null,{"href":"/bilkoll/","children":"Hem"}]," ",["$","span",null,{"children":"›"}]," ",["$","a",null,{"href":"/bilkoll/guide","children":"Guider"}]," ",["$","span",null,{"children":"›"}]," ","Vanligaste felen vid besiktning — Och hur du undviker dem"]}],["$","article",null,{"className":"section","children":["$","div",null,{"className":"container","style":{"maxWidth":800},"children":[["$","span",null,{"className":"badge badge-blue","style":{"marginBottom":12,"display":"inline-block"},"children":"Besiktning"}],["$","h1",null,{"style":{"fontSize":"2.2rem","marginBottom":12,"lineHeight":1.3},"children":"Vanligaste felen vid besiktning — Och hur du undviker dem"}],["$","p",null,{"style":{"color":"var(--text-secondary)","marginBottom":24},"children":["Uppdaterad ","2026-02-15"," • ",7," min läsning"]}],["$","img",null,{"src":"/bilkoll/images/guides/guide-12.jpg","alt":"Bilsäkerhet test","style":{"width":"100%","borderRadius":"var(--radius)","marginBottom":32,"maxHeight":400,"objectFit":"cover"}}],["$","div",null,{"className":"guide-content","dangerouslySetInnerHTML":{"__html":"$2"},"style":{"fontSize":"1.05rem","lineHeight":1.8}}],["$","div",null,{"style":{"marginTop":48},"children":[["$","h2",null,{"style":{"marginBottom":16},"children":"Relaterade guider"}],["$","div",null,{"className":"grid grid-2","children":[["$","a","besiktning-2026",{"href":"/bilkoll/guide/besiktning-2026","style":{"textDecoration":"none","color":"inherit"},"children":["$","div",null,{"className":"card","children":[["$","span",null,{"className":"badge badge-blue","children":"Besiktning"}],["$","h3",null,{"style":{"marginTop":8},"children":"Allt du behöver veta om besiktning 2026 — Komplett guide"}]]}]}],["$","a","service-guide",{"href":"/bilkoll/guide/service-guide","style":{"textDecoration":"none","color":"inherit"},"children":["$","div",null,{"className":"card","children":[["$","span",null,{"className":"badge badge-blue","children":"Service"}],["$","h3",null,{"style":{"marginTop":8},"children":"Bilservice — Vad ingår och vad kostar det?"}]]}]}],["$","a","kopa-begagnad-bil",{"href":"/bilkoll/guide/kopa-begagnad-bil","style":{"textDecoration":"none","color":"inherit"},"children":["$","div",null,{"className":"card","children":[["$","span",null,{"className":"badge badge-blue","children":"Bilköp"}],["$","h3",null,{"style":{"marginTop":8},"children":"Köpa begagnad bil — 12 saker att kontrollera innan köpet"}]]}]}]]}]]}],["$","div",null,{"className":"cta-box","style":{"marginTop":48},"children":[["$","h3",null,{"children":"📱 BilKoll — Din digitala bilpärm"}],["$","p",null,{"children":"Håll koll på besiktning, skatt, däckbyten, service och mer. Helt gratis."}],["$","a",null,{"href":"/bilkoll/","className":"cta-btn","children":"Läs mer om BilKoll"}]]}]]}]}]],null],null],null]},[null,["$","$L3",null,{"parallelRouterKey":"children","segmentPath":["children","guide","children","$4","children"],"error":"$undefined","errorStyles":"$undefined","errorScripts":"$undefined","template":["$","$L5",null,{}],"templateStyles":"$undefined","templateScripts":"$undefined","notFound":"$undefined","notFoundStyles":"$undefined"}]],null]},[null,["$","$L3",null,{"parallelRouterKey":"children","segmentPath":["children","guide","children"],"error":"$undefined","errorStyles":"$undefined","errorScripts":"$undefined","template":["$","$L5",null,{}],"templateStyles":"$undefined","templateScripts":"$undefined","notFound":"$undefined","notFoundStyles":"$undefined"}]],null]},[[[["$","link","0",{"rel":"stylesheet","href":"/bilkoll/_next/static/css/500c7671b6d35e9a.css","precedence":"next","crossOrigin":"$undefined"}]],["$","html",null,{"lang":"sv","children":["$","body",null,{"children":[["$","header",null,{"className":"site-header","children":["$","div",null,{"className":"container","children":[["$","a",null,{"href":"/bilkoll/","className":"site-logo","children":["🚗 BilKoll ",["$","span",null,{"children":"Beta"}]]}],["$","nav",null,{"className":"site-nav","children":[["$","a",null,{"href":"/bilkoll/bil/volvo","children":"Märken"}],["$","a",null,{"href":"/bilkoll/besiktning","children":"Besiktning"}],["$","a",null,{"href":"/bilkoll/skatt","children":"Fordonsskatt"}],["$","a",null,{"href":"/bilkoll/vardering","children":"Värdering"}],["$","a",null,{"href":"/bilkoll/forsakring","children":"Försäkring"}],["$","a",null,{"href":"/bilkoll/guide","children":"Guider"}]]}]]}]}],["$","main",null,{"children":["$","$L3",null,{"parallelRouterKey":"children","segmentPath":["children"],"error":"$undefined","errorStyles":"$undefined","errorScripts":"$undefined","template":["$","$L5",null,{}],"templateStyles":"$undefined","templateScripts":"$undefined","notFound":[["$","title",null,{"children":"404: This page could not be found."}],["$","div",null,{"style":{"fontFamily":"system-ui,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif,\"Apple Color Emoji\",\"Segoe UI Emoji\"","height":"100vh","textAlign":"center","display":"flex","flexDirection":"column","alignItems":"center","justifyContent":"center"},"children":["$","div",null,{"children":[["$","style",null,{"dangerouslySetInnerHTML":{"__html":"body{color:#000;background:#fff;margin:0}.next-error-h1{border-right:1px solid rgba(0,0,0,.3)}@media (prefers-color-scheme:dark){body{color:#fff;background:#000}.next-error-h1{border-right:1px solid rgba(255,255,255,.3)}}"}}],["$","h1",null,{"className":"next-error-h1","style":{"display":"inline-block","margin":"0 20px 0 0","padding":"0 23px 0 0","fontSize":24,"fontWeight":500,"verticalAlign":"top","lineHeight":"49px"},"children":"404"}],["$","div",null,{"style":{"display":"inline-block"},"children":["$","h2",null,{"style":{"fontSize":14,"fontWeight":400,"lineHeight":"49px","margin":0},"children":"This page could not be found."}]}]]}]}]],"notFoundStyles":[]}]}],["$","footer",null,{"className":"site-footer","children":["$","div",null,{"className":"container","children":[["$","div",null,{"className":"footer-grid","children":[["$","div",null,{"className":"footer-col","children":[["$","h4",null,{"children":"Populära märken"}],["$","a",null,{"href":"/bilkoll/bil/volvo","children":"Volvo"}],["$","a",null,{"href":"/bilkoll/bil/volkswagen","children":"Volkswagen"}],["$","a",null,{"href":"/bilkoll/bil/toyota","children":"Toyota"}],["$","a",null,{"href":"/bilkoll/bil/bmw","children":"BMW"}],["$","a",null,{"href":"/bilkoll/bil/mercedes-benz","children":"Mercedes-Benz"}],["$","a",null,{"href":"/bilkoll/bil/kia","children":"Kia"}],["$","a",null,{"href":"/bilkoll/bil/tesla","children":"Tesla"}]]}],["$","div",null,{"className":"footer-col","children":[["$","h4",null,{"children":"Verktyg"}],["$","a",null,{"href":"/bilkoll/","children":"Sök regnummer"}],["$","a",null,{"href":"/bilkoll/besiktning","children":"Besiktningsguide"}],["$","a",null,{"href":"/bilkoll/skatt","children":"Fordonsskatt"}],["$","a",null,{"href":"/bilkoll/statistik","children":"Statistik"}]]}],["$","div",null,{"className":"footer-col","children":[["$","h4",null,{"children":"Guider"}],["$","a",null,{"href":"/bilkoll/guide/besiktning-2026","children":"Besiktning 2026"}],["$","a",null,{"href":"/bilkoll/guide/vinterdack","children":"Vinterdäck — guide & regler"}],["$","a",null,{"href":"/bilkoll/guide/bilvardering","children":"Så värderar du din bil"}],["$","a",null,{"href":"/bilkoll/guide/fordonsskatt-guide","children":"Fordonsskatt — komplett guide"}]]}],["$","div",null,{"className":"footer-col","children":[["$","h4",null,{"children":"BilKoll"}],["$","a",null,{"href":"/bilkoll/om","children":"Om oss"}],["$","a",null,{"href":"/bilkoll/kontakt","children":"Kontakt"}],["$","a",null,{"href":"/bilkoll/integritet","children":"Integritetspolicy"}]]}]]}],["$","div",null,{"className":"footer-bottom","children":"© 2026 BilKoll. All fordonsdata hämtas från offentliga källor. BilKoll är inte anslutet till Transportstyrelsen."}]]}]}]]}]}]],null],null],["$L6",null]]]] 6:[["$","meta","0",{"name":"viewport","content":"width=device-width, initial-scale=1"}],["$","meta","1",{"charSet":"utf-8"}],["$","title","2",{"children":"Vanligaste felen vid besiktning — Och hur du undviker dem | BilKoll"}],["$","meta","3",{"name":"description","content":"De 10 vanligaste anmärkningarna vid bilbesiktning i Sverige och hur du åtgärdar dem innan besiktning."}],["$","meta","4",{"name":"keywords","content":"vanliga besiktningsfel,besiktning underkänd,besiktning anmärkning,vanliga fel besiktning"}],["$","meta","5",{"name":"robots","content":"index, follow"}],["$","meta","6",{"property":"og:title","content":"Vanligaste felen vid besiktning — Och hur du undviker dem | BilKoll"}],["$","meta","7",{"property":"og:description","content":"De 10 vanligaste anmärkningarna vid bilbesiktning i Sverige och hur du åtgärdar dem innan besiktning."}],["$","meta","8",{"property":"og:site_name","content":"BilKoll"}],["$","meta","9",{"property":"og:locale","content":"sv_SE"}],["$","meta","10",{"property":"og:type","content":"website"}],["$","meta","11",{"name":"twitter:card","content":"summary"}],["$","meta","12",{"name":"twitter:title","content":"Vanligaste felen vid besiktning — Och hur du undviker dem | BilKoll"}],["$","meta","13",{"name":"twitter:description","content":"De 10 vanligaste anmärkningarna vid bilbesiktning i Sverige och hur du åtgärdar dem innan besiktning."}],["$","link","14",{"rel":"icon","href":"/bilkoll/favicon.ico","type":"image/x-icon","sizes":"16x16"}]] 1:null