Checking the expiration of the gas pressure springs for hood and, if necessary, replacing them
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
Gas pressure spring for hood
- Expiration date
- Production date (days/year)
Precondition
- Brake fluid service was carried out.
CBS reset was carried out.
NOTE:
TECHNICAL INFORMATION
For vehicles with active pedestrian protection (SA8TF), both gas-filled shock absorbers of the hood must be regularly replaced as part of preventive maintenance.
With some gas-filled shock absorbers, the expiration date is printed on. For all others, only the production date is printed on.
Regardless of the printing, both gas-filled shock absorbers of the hood must be regularly replaced as part of preventive maintenance.
For vehicles with active pedestrian protection (SA8TF), both gas-filled shock absorbers of the hood must be regularly replaced as part of preventive maintenance.
With some gas-filled shock absorbers, the expiration date is printed on. For all others, only the production date is printed on.
Regardless of the printing, both gas-filled shock absorbers of the hood must be regularly replaced as part of preventive maintenance.
Preliminary work
- Refer to CONVERTING THE PRODUCTION DATE .
- Refer to CALCULATING THE EXPIRATION DATE .
- Refer to DETERMINING THE DATE OF THE NEXT BRAKE FLUID SERVICE .
- Check whether the expiry of the two gas pressure springs for hood has reached the date of the next brake fluid service.
- If the expiry is not reached: Replace the two gas pressure springs for hood against a separate calculation.
- Example vehicle 1:
Expiration date 02/2022 is earlier than the date of the next brake fluid service 04/2022.
=> Both gas pressure springs for hood must be replaced.
- Example vehicle 2:
Expiration date 02/2022 is later than the date of the next brake fluid service 12/2021.
=> Neither of the gas pressure springs for hood need to be replaced at the current point in time.
Follow-up work
- Refer to REPLACING THE GAS PRESSURE SPRINGS FOR HOOD .