Mercedes-Benz A Class, B Class, CLA And 2 More Recall R/2017/177: Airbag May Not Deploy Correctly, Who Is Affected And What To Do
- Urgent
- How serious
- 20 Jun 2017
- Launched
- 1,034
- vehicles in the UK
- SRPC1721
- Manufacturer’s campaign code
Mercedes-Benz recalled A Class, B Class, CLA and 2 more vehicles built between 1 August 2016 and 31 March 2017. The propellant mixing ratio in the igniters of the front passenger airbag assembly may not meet specification. The recall notice describes the fix as: that are likely to be affected and replace the front passenger airbag assembly. You won't usually pay for it.1
What’s Wrong
The propellant mixing ratio in the igniters of the front passenger airbag assembly may not meet specification. If the airbag is required and activated it might not deploy or not completely deploy. This could increase the risk of injury to the occupants.
DVSA's Original Wording
Concern: AIRBAG MAY NOT DEPLOY CORRECTLY Defect: The propellant mixing ratio in the igniters of the front passenger airbag assembly may not meet specification. If the airbag is required and activated it might not deploy or not completely deploy. This could increase the risk of injury to the occupants. Remedy: Recall the vehicles that are likely to be affected and replace the front passenger airbag assembly.
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
If the fault occurs, the recall notice says it could increase the risk of injury to the occupants.
The Fix
The recall notice describes the fix as: that are likely to be affected and replace the front passenger airbag assembly.
Are You Affected?
A Class, B Class, CLA and 2 more built between 1 August 2016 and 31 March 2017 may be included. Mercedes-Benz estimates 1,034 vehicles in the UK. Enter your registration to check, then confirm by VIN with Mercedes-Benz, because not every car in the date range may be included.
Which Car Is It?
Choose the make and model so we can match recalls to your car.
What To Do Now
- Check your car by registration above, then by VIN with Mercedes-Benz.
- Book with any franchised Mercedes-Benz dealer, quoting the campaign code SRPC1721 or the DVSA reference R/2017/177. See how to get a Mercedes-Benz recall fixed.
- Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
Related Recalls
| Launched | Vehicle and fault | Severity | Reference |
|---|---|---|---|
| CLS, E Class, GLCDrive shaft joint | Low | R/2026/148 | |
| CLA, GLBElectric drive unit power electronics | Low | R/2026/315 | |
| E ClassCoolant pump control software | Low | R/2026/201 | |
| CLA, GLBSoftware version of communication module | Low | R/2026/203 | |
| A ClassInterior door handle release | Book soon | R/2026/098 |
This is one of 833 Mercedes-Benz recalls in DVSA’s data. The Mercedes-Benz recall launched before it was R/2017/162 on 20 Jun 2017, for right window airbag may fail to deploy as intended. The one launched after it was R/2017/179 on 20 Jun 2017, for vacuum line brake booster may break. You can also see every Mercedes-Benz recall, all recalls launched in 2017 and airbag recalls across every make.
Source: DVSA recall R/2017/177, launched 20 June 2017. Data updated 15 October 2026. How we grade urgency.
Sources
- The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.