Mercedes E-Klasse Transmission and Check Engine Light Issues

Fault code 159300 typically relates to a transmission issue, possibly involving the transmission control module or solenoids. Start by checking the transmission fluid level and condition, as low or dirty fluid can cause shifting problems. If the fluid is fine, it might be necessary to have a professional diagnose the transmission control module or solenoids. Given the safety implications of transmission issues, consider having a mechanic inspect it. Let us know how it goes or if you have more questions!