Smart Fortwo Diesel Stalling Points to Bad Injectors

Had similar issues with a Smart ForFour CDI 2012. Rough running and excessive fuel consumption pointed to injector problems. The repair involved removing and cleaning all injectors since carbon deposits were causing clogging and irregular spray patterns. Diesel engine injector issues can become serious if not addressed promptly. In my case, one injector was beyond cleaning and needed replacement. The diagnosis showed poor atomization was leading to incomplete combustion, causing the stalling and increased emissions. The key indicator was black smoke from the exhaust, combined with the hard starting. These symptoms typically mean either dirty or failing injectors in diesel engines. The repair included: Full injector removal and testing, Professional ultrasonic cleaning, Replacement of one faulty injector, New seals and washers, Fuel system cleaning It solved the rough running completely and restored normal fuel consumption. This type of repair is indeed significant since injectors are precision components critical to engine performance. Neglecting injector maintenance can lead to more severe engine damage over time. Consider requesting a proper injector diagnosis with pressure testing before committing to full replacement.

Thanks for sharing your ForFour experience. My Fortwo had nearly identical symptoms with the rough running and misfire issues. After reading this, I will definitely get the injectors tested before any replacements. Can you recall the total cost of your repair? Also wondering if youve had any other diesel injection related problems since the fix? These injector issues seem pretty common on Smart diesels from what I gather.

The total repair came to 515€ which covered fixing the defective injection nozzle. Looking back, it was money well spent since the engine performance improved dramatically after the repair. The initial symptoms like rough running and misfires completely disappeared. Since getting the injection valve cleaned, the diesel engine has been running smoothly with no further injection-related problems. This kind of maintenance really proved crucial for proper engine function and emissions control. The fuel consumption returned to normal levels too. The investment in proper diagnosis and repair by a qualified mechanic helped avoid more expensive engine damage down the road. These injection system issues are indeed common in diesel engines, but once properly fixed, they typically stay resolved with regular maintenance. The key was catching the problem early before it could cause more extensive damage to the engine. The improved starting, smoother idle, and better overall performance confirmed that the injection system repair was the right solution.

Finally got my Fortwo fixed last week. Took it to a diesel specialist who did proper testing first. Turns out two injectors were causing the misfire issues. One needed full replacement while the other just needed a thorough cleaning. Total bill came to 680€ including diagnostics, parts and labor. More than I hoped but worth every cent. The engine runs like new now, no more rough starts or stalling. Fuel consumption dropped back to normal levels too. The mechanic showed me the clogging in the old injector. No wonder it was giving me trouble. Really glad I asked for advice here and got proper testing done first instead of rushing into blind repairs. For anyone else dealing with similar diesel injection problems, get proper diagnostics first. Saves money and headaches in the long run.