Smart 453EQ sa zapaljenim inverterom. Zasto EU ne štiti EU vozače od tvorničkih grešaka? Ne samo na strujićima već i na fosilcima/hybridima. Ona vozila koja su sa razlogom u opozivu jer je tvornička greška, ista je opasnost u Americi, Norveškoj, Kini i u opozivu je, besplatno mjenjaju dio o svom trošku. Kao nissan leaf sa škart opasnom baterijom zbog napuhavanja ćelija i kratkog spoja, kao što je Kia Soul u opozivu za bateriju i opasnost od napuhavanja ćelija pa mjenjaju besplatno, kao Stellantis OBC i baterije… i 50 drugih primjera, vozila su opozivu i mjenja se tvornicka greska svagdje osim u EU. Unutar EU vlasnici placaju tudje greške. Smart 453EQ ima osim programiranih kvarova i ne evidentiranu tvornicku gresku DCDC invertera koji je se u 5 evidentiranih slučajeva zapalio samo u Zagrebu, za dva vozila iz njemačke znamo da su i vozila nagorila kompletno. DCDC se nalazi u modulu motora (powertrain jedinica), osim glupog i nefunkcionalnog dizajna gdje za svaki kvar skidas kompletan zadnji kraj takodjer je i preskup, totalno neodrživ. DCDC je ovom vozilu “alternator” za punjenje malog akumulatora, sto se tocno desi niie jasno ali osim programirane greske kad se izbriše, poremeti, nije moguce ni fleshanjem online SCN osposobiti. Samo reparacija na stolu pomaže. Ustanovili smo da i loš akumulator ga ošteti. Takodjer ga ošteti ako antifriz nije pravilno ozračen, jer on se nalazi u samom vrhu sustava a hladi se sa antifrizom. A najzanimljivije je to što vecina vlasnika u garanciji ni nezna da im se zapalio DCDC, a sam razvoj horora ide ovako: ujutro se probudite smart ne vozi, odvezes u servis, javljaju da je velika baterija neispravna… ok garancija, čekaš, oni montiraju i zovu da je JOS NEŠTO NEISPRAVNO(to je znak). U nekim slučajevima ako je nagoreni dcdc zalijepio kontaktore i skurio bateriju/osigurac moguce da je DCDC i dalje u kratkom spoju od 0 ohm. Decki ugrade novu bateriju pa spale i nju. Nekad znaju dva puta mjenjati bateriju, dok ne skuže da je šlus i na autu. Onda zamjene powertrain jedinicu i bateriju pa Smart proradi. Ovlasteni servisi vracaju stare dijelove tvornici i niti ne znaju da je požar bio u modulu, koji srećom nije eskalirao dalje. Proizvodjač zna za problem ali od 2017 godine nitko nije napravio opoziv. Isti se problem desava na Twingu, Zoe i elektricnom Smartu 453EQ. Vrlo opasan problem za koji bi netko od proizvodjača trebao u zatvor. Problem je jako kompleksan jer dovodi u problem sve, i radi ogromnu stetu svima. Prvo mi ugradjujemo nove original komponente u DCDC kad je neispravan, medjutim on je i dalje tvornicka greška dizajnom, jer je i nov tvornička greška. Odgovornost prenose na nas da se čak razmišljamo kompletno obustaviti radove na ovom tipu vozila kao i za Nissan Leaf bateriie. Ovo je wakeup call vlasnicima da ipak kontaktiraju zastitu potrosaca i prijave problem jer na ovim temama i istazivanjima ne radi niko. Možda čak i NHTSA prijaviti. I vrlo bitno za napomenuti je da tehnicari ovlastenog servisa imaju vezane ruke, ne smiju otvarati powertrain za provjeru, odgovornost je najmanje na njima, samo na proizvodjuču. Ovo vozilo je za totalni opoziv DCDC invertera.
Part number: 292A05698R, A4533404500
Supplier: Delta
Engineering: Renault
Why isn’t the EU protecting its drivers from factory defects, not only in electric vehicles but also in ICE and hybrid cars? Take the Smart 453EQ for example, which has a recurring issue with a burning inverter. In other markets like the US, Norway, and China, vehicles are recalled, and faulty parts are replaced at no cost to the owner when factory defects pose safety risks. Examples include the Nissan Leaf’s battery issues due to cell swelling and short circuits, the Kia Soul’s recall over dangerous battery defects, and Stellantis’ recalls for onboard chargers and batteries. Yet in the EU, it’s a different story—owners end up paying for manufacturers’ mistakes.
Beyond programmed faults, the Smart 453EQ has an undocumented factory defect in its DCDC inverter, which has caused fires in five cases just in Zagreb, with two cars imported from Germany completely burning. The DCDC, responsible for charging the 12V battery, is placed within the powertrain module in a poorly designed, hard-to-access location that requires removing the entire rear end for repairs. Not only is this setup impractical, but it’s also costly and unsustainable.
The root issue is unclear, but besides the programmed fault that causes it to malfunction, attempts to enable it via online SCN coding have failed. It can only be fixed on the workbench. We’ve discovered that a bad battery or improper antifreeze circulation—since it’s cooled at the top of the system—can also damage the DCDC. What’s more alarming is that many owners are unaware their DCDC failed during the warranty period. Here’s how it often plays out: the car won’t start in the morning, it goes to the service center, they identify a problem with the main battery, and you wait for the warranty replacement. But then they inform you there’s “something else wrong,” indicating deeper issues.
In some instances, a burnt DCDC can weld its contactors, damaging both the battery and fuse, leading to a short circuit. Service centers may install a new battery, only for it to burn out again because they didnt check HV output resistance directly on the cable. It’s sometimes only after two battery replacements that the real problem is identified, prompting the replacement of the entire powertrain module. Yet, authorized service centers often return the damaged parts to the manufacturer, unaware that a fire occurred within the module. The manufacturer has known about this problem since 2017 but has not issued a recall. This issue extends to the Renault Twingo, Zoe, and electric Smart 453EQ, posing a significant safety hazard that should lead to accountability for the manufacturers.
The complexity of the issue means it affects everyone involved, causing substantial losses. Even after replacing the DCDC with new original components, the defect remains due to a flawed design. DCDC input and output doesnt have its own FUSE. Given the risks and responsibilities being unfairly placed on us, we are considering halting repairs on this model as well as on Nissan Leaf batteries. Owners need to take action by contacting consumer protection agencies to report these problems, as there are no ongoing investigations or corrective measures. Reporting to the NHTSA might be a necessary step.
Part number: 292A05698R
Supplier: Delta
Engineering: Renault
Other example: https://www.smartcarofamerica.com/threads/smart-fortwo-453-eq.163345/
Example when DCDC inverter destroys electric Smart 453EQ but battery survives:
Example when DCDC catch fire and destroys Renault Zoe in Croatia Varazdin:
OTHER PICTURES
