The passenger compartment of the Megane E-Tech remained stable in the frontal offset test. Dummy numbers showed good protection of the knees and femurs of both the driver and passenger. Renault showed that a similar level of protection would be provided to occupants of different sizes and to those sitting in different positions. Apart from the driver’s chest, protection of which was adequate, protection of all critical body areas was good or adequate.   Analysis of the deceleration of the impact trolley during the test, and analysis of the deformable barrier after the test, revealed that the Megane E-Tech would be a moderately benign impact partner in a frontal collision. In the full-width rigid barrier test, good or adequate protection was provided to all critical body areas, for both the driver and rear passenger. In the side barrier test, protection of all critical body areas was good and the car scored maximum points in this part of the assessment. In the more severe side pole impact, protection of all critical body areas was good or adequate. Control of excursion (the extent to which a body is thrown to the other side of the vehicle when it is hit from the far side) was found to be marginal. The Megane E-Tech has a countermeasure to mitigate against occupant-to-occupant injuries in such impacts and this performed well in Euro NCAP's test. Tests on the front seats and head restraints demonstrated marginal protection against whiplash injuries in the event of a rear-end collision.  A geometric analysis of the rear seats indicated good whiplash protection.   The Megane E-Tech has an advanced eCall system which alerts the emergency services in the event of a crash, but there is no system to prevent secondary impacts after the car has been in a collision.

In the frontal offset test, measurements of neck tension in the 10-year dummy indicated a marginal level of protection.  Otherwise, protection of all critical body areas was good, both for the 10-year and 6-year dummies.  The front passenger airbag can be disabled to allow a rearward-facing child restraint to be used in that seating position.  Clear information is provided to the driver regarding the status of the airbag and the system was rewarded.  All of the restraint types for the which the Megane E-Tech is designed could be properly installed and accommodated in the car.

The protection provided by the bonnet to the head of a struck pedestrian was predominantly good or adequate, with some poor results recorded on the base of the windscreen and on the stiff windscreen pillars.  The bumper provided good protection to pedestrians’ legs at all test points.  However, protection of the pelvis was mainly weak or poor.  The autonomous emergency braking system, fitted as standard, can detect vulnerable road users as well as other vehicles.  The system performed well in tests of its reaction to pedestrians and cyclists, with collisions avoided or mitigated in most scenarios.

In tests of its response to other vehicles, the autonomous emergency braking system performed adequately.  A lane support system gently corrects the steering if the car is drifting out of lane and it can also intervene more aggressively in some other, more critical, situations.  The speed assistance system can detect the local speed limit and presents the information to the driver, allowing the speed limiter to be set appropriately.  A seat belt reminder is standard for all seating positions.