2021 Citroen C4 Problems: 2 Known Issues
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Citroen C4 has 2 documented known issues, with 2 rated critical. The most serious are 1.2 PureTech oil-bath timing belt can break down early (manufacturer special coverage) and Rear coil springs can come off their lower seats — recall HWH. DIY maintenance guides at au7o.io.
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All 2 Known Issues
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Frequently Asked Questions
What are the most common Citroen C4 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Citroen C4 has 2 documented issues. Documented issues include: 1.2 PureTech oil-bath timing belt can break down early (manufacturer special coverage), Rear coil springs can come off their lower seats — recall HWH. Of these, 2 are rated critical and should be addressed promptly.
Is the Citroen C4 reliable?
The 2021 Citroen C4 has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: 1.2 PureTech oil-bath timing belt can break down early (manufacturer special coverage) and Rear coil springs can come off their lower seats — recall HWH. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What is the 2014-2018, 2020-2023 Citroen C4 1.2 PureTech oil-bath timing belt can break down early (manufacturer special coverage)?
The 1.2 PureTech three-cylinder petrol engine runs its timing belt in engine oil, and Citroën's special-coverage terms cover engine lubrication faults caused by premature degradation of that belt. Belt debris left in the oil can clog engine parts, including the brake-assist vacuu… Severity: high.
What is the 2020-2021 Citroen C4 Rear coil springs can come off their lower seats — recall HWH?
A rear suspension spring can become detached from its lower locating cup. If it does, driving stability is affected, which may increase the risk of an accident. It affects Citroën ë-C4 (electric) cars built 26 May 2020 to 20 August 2021, covered by UK recall R/2022/023 (manufactu… Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.