Opel Mokka-e Mk2

The most significant known issue across all Stellantis eCMP electric vehicles. The Mahle-manufactured 11 kW three-phase onboard charger (CAOBC1) can fail completely, leaving the car unable to AC charge — only DC fast charging works until repaired. Failing units often lose the ability to charge on all three phases first, dropping from 11 kW to 7-8 kW before failing entirely. Some cases even damaged the home wallbox charger. The OBC costs approximately €2,200-3,800 for replacement at a dealer, and the unit must be dealer-coded to the vehicle (salvage parts cannot be used). ACtronics now offers remanufactured units as a cheaper alternative. Stellantis extended OBC warranty to 4 years from April 2021 and has begun replacing failed Mahle units with more reliable VMAX chargers from a Chinese manufacturer. Cars built 2021-2022 with the original Mahle unit are most at risk. Post-2023 production generally uses the improved VMAX unit.

The Mokka-e draws a small parasitic current even when off, and smartphone apps (MyOpel) polling the car can accelerate drain. Some owners report the 12V battery dying within 3-5 days of inactivity. The car becomes completely unresponsive — no lights, no unlocking, no starting — despite the main 50 kWh battery being fully charged. The 12V AGM battery costs €150-250 for the part plus €50-100 for dealer fitting and coding. A software recall helped reduce parasitic drain on some cars, and keeping the car driven regularly or using a trickle charger prevents the issue. Expect to replace the 12V battery every 3-4 years, which is faster than typical ICE cars. Replacement and programming costs approximately €290 at a dealer.

A catch-all warning message that can be triggered by multiple root causes. In many cases, a faulty or weak 12V battery is the underlying cause — replacing it resolves the error. Other triggers include faulty wheel speed sensors (€200-300 to replace), AC compressor stator wiring faults, or BSI software bugs. In some cases, simply disconnecting the 12V battery for 15 seconds and reconnecting it clears the error. The Mokka-e has a quick-release mechanism on the positive terminal for this purpose. The AC compressor issue was addressed by a recall for cars built October 2019 to November 2022 — a software update prevents the compressor failure from shutting down the entire powertrain. More serious cases involving component replacement can cost up to €1,500, but the majority resolve with a 12V battery replacement or software update at minimal cost.

The infotainment display can freeze, become unresponsive to touch input, or go completely black. The radio often continues working in the background. This tends to occur intermittently, sometimes triggered by connecting phones or USB devices. A workaround is to long-press the NAV and phone buttons simultaneously for about 10 seconds until the system reboots. Opel dealers have released software updates that help in some cases, but the problem can recur. Damp weather and cold temperatures increase the frequency. In persistent cases, the infotainment module itself may need replacement (€200-300 at an independent specialist). This is more of an annoyance than a safety issue, as all driving functions remain unaffected.

Some Mokka-e owners report cascading warning messages starting with lane guidance and driver assistance systems being disabled, followed by progressive loss of power steering over 5-10 seconds. On a heavy electric crossover, driving without power steering is extremely difficult. Causes include a faulty CPU embedded in the steering rack/motor assembly, loose connections, or again a weak 12V battery triggering sensor errors. If the steering rack assembly needs replacement, costs run €800-1,500 at a dealer as the sealed unit must be coded to the VIN. However, many cases are resolved with a sensor recalibration (€200-300) or 12V battery replacement. This issue appears relatively uncommon but is serious when it occurs.