{"canonVersion":{"checklist":1,"defects":2},"defectsRelease":{"format":3,"release":"2026.10.1","dossiers":15},"attribution":{"source":"Elgarde","url":"https://elgarde.com","license":"CC-BY-4.0","repository":"https://github.com/ElgardeCom/elgarde"},"disclaimer":"Elgarde is a self-service checklist, not a certified, mechanical or legal inspection and not professional advice. Defect entries are known weak points to check on a model — never a claim about any individual car.","defectsDisclaimer":"Each entry describes a known weak point of a model, engine or gearbox, based on published sources. It is not a statement about any individual car and not a diagnosis. An entry does not mean that a given car has the defect; the absence of an entry does not mean that a car is sound. Prevalence figures are estimates for the stated population and method, with their biases, and cannot be applied to a single car. The data is provided as is, without warranty (CC-BY-4.0, section 5); it is not a certified, mechanical or legal inspection. Naming a manufacturer or its product is not an assessment of that manufacturer; source links show where each fact comes from. To report an error, open an issue at github.com/ElgardeCom/elgarde or write to support@elgarde.com. We correct mistakes.","lang":"en","since":null,"count":15,"defects":[{"id":"cvt.xtronic","title":"Nissan Juke (F15) with Xtronic CVT (Jatco JF016E / RE0F10D): Nissan has extended the CVT warranty and issued a service bulletin for judder and transmission codes (US market)","severity":"major","safety":false,"critical":false,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["nissan.juke"],"detailUrl":"https://api.elgarde.com/api/v1/defects/cvt.xtronic"},{"id":"dsg.dq200","title":"VW group 7-speed DSG DQ200 (0AM / 0CW / 0BM, dry clutches): reported mechatronic and clutch faults","severity":"major","safety":true,"critical":false,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["volkswagen.golf","volkswagen.polo","volkswagen.passat","volkswagen.caddy","volkswagen.jetta","volkswagen.scirocco","volkswagen.touran","audi.a1","audi.a3","seat.ibiza","seat.leon","skoda.fabia","skoda.octavia"],"detailUrl":"https://api.elgarde.com/api/v1/defects/dsg.dq200"},{"id":"ecoboost.coolant","title":"Ford 1.0 EcoBoost (Fox) built October 2011 to October 2013: the degas pipe material can degrade, with coolant loss and overheating","severity":"critical","safety":false,"critical":true,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["ford.focus","ford.fiesta","ford.b_max","ford.c_max"],"detailUrl":"https://api.elgarde.com/api/v1/defects/ecoboost.coolant"},{"id":"ecoboost.wetbelt","title":"Ford 1.0 EcoBoost (Fox) with oil-bath timing belt: the oil pump belt, its tensioner or belt debris can cut oil pressure","severity":"critical","safety":true,"critical":false,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["ford.fiesta","ford.focus","ford.ecosport","ford.b_max","ford.c_max","ford.mondeo","ford.puma"],"detailUrl":"https://api.elgarde.com/api/v1/defects/ecoboost.wetbelt"},{"id":"m271.timingchain","title":"Mercedes M271 1.8 petrol: timing chain, tensioner and camshaft adjuster wear","severity":"major","safety":false,"critical":false,"evidenceGrade":"well_documented","revision":1,"updatedAt":"2026-10-13","models":["mercedes.cclass","mercedes.eclass","mercedes.slk"],"detailUrl":"https://api.elgarde.com/api/v1/defects/m271.timingchain"},{"id":"n47.chain","title":"BMW N47 2.0 diesel: rear timing chain wear and failure","severity":"critical","safety":false,"critical":true,"evidenceGrade":"well_documented","revision":1,"updatedAt":"2026-10-13","models":["bmw.1series","bmw.2series","bmw.3series","bmw.5series","bmw.x1","bmw.x3"],"detailUrl":"https://api.elgarde.com/api/v1/defects/n47.chain"},{"id":"oil.leaks","title":"BMW N20 and N55 petrol engines (August 2011 to March 2012 builds): plastic oil filter housing oil or coolant leak","severity":"moderate","safety":false,"critical":false,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["bmw.x1","bmw.z4","bmw.5series","bmw.x3","bmw.3series"],"detailUrl":"https://api.elgarde.com/api/v1/defects/oil.leaks"},{"id":"om651.injectors","title":"Mercedes OM651 diesel 220 CDI and 250 CDI (from 2009): early piezo injector failures","severity":"major","safety":false,"critical":false,"evidenceGrade":"well_documented","revision":1,"updatedAt":"2026-10-13","models":["mercedes.cclass","mercedes.eclass","mercedes.glk","mercedes.slk"],"detailUrl":"https://api.elgarde.com/api/v1/defects/om651.injectors"},{"id":"powershift","title":"Ford Fiesta and Focus with the DPS6 Powershift dual-clutch (built 2009-2016, US documentation): input shaft seal leaks, clutch shudder and control module failures","severity":"major","safety":false,"critical":false,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["ford.fiesta","ford.focus"],"detailUrl":"https://api.elgarde.com/api/v1/defects/powershift"},{"id":"puretech.wetbelt","title":"1.2 PureTech turbo (EB2DT / EB2DTS): wet timing belt degradation","severity":"critical","safety":true,"critical":true,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["peugeot.208","peugeot.2008","peugeot.308","peugeot.3008","peugeot.5008","peugeot.partner","citroen.c3","citroen.c3_picasso","citroen.c4","citroen.c4_cactus","citroen.c4_picasso","citroen.berlingo","citroen.ds3","citroen.ds4","ds.ds3","ds.ds4"],"detailUrl":"https://api.elgarde.com/api/v1/defects/puretech.wetbelt"},{"id":"tdi.egr","title":"VW 2.0 TDI (EA189, codes CBEA / CJAA, US-specification): EGR flow fault P0401 with DPF soot, per a Volkswagen service bulletin","severity":"moderate","safety":false,"critical":false,"evidenceGrade":"established","revision":1,"updatedAt":"2026-10-13","models":["volkswagen.jetta","volkswagen.golf","volkswagen.beetle"],"detailUrl":"https://api.elgarde.com/api/v1/defects/tdi.egr"},{"id":"tsi.chain","title":"VW group 1.2 / 1.4 TSI (EA111, timing chain): reported chain stretch and tensioner rattle on cold start","severity":"critical","safety":false,"critical":false,"evidenceGrade":"well_documented","revision":1,"updatedAt":"2026-10-13","models":["volkswagen.golf","volkswagen.polo","volkswagen.jetta","volkswagen.passat","volkswagen.scirocco","volkswagen.touran","volkswagen.caddy","volkswagen.tiguan","volkswagen.beetle","audi.a1","audi.a3","seat.ibiza","seat.leon","seat.altea","seat.toledo","skoda.octavia","skoda.fabia","skoda.yeti","skoda.rapid","volkswagen.eos","volkswagen.sharan","seat.alhambra","skoda.roomster","skoda.superb"],"detailUrl":"https://api.elgarde.com/api/v1/defects/tsi.chain"},{"id":"tsi.oil","title":"VW group 1.8 / 2.0 TFSI (EA888 first generations, built about 2008 to 2011): reported high oil 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