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Common problems with the Citroen C5 Aircross

Ellie Dyer-Brown, 1 month ago

5 min read

  • Advice
  • Repair
iStock-C5 Aircross

WhoCanFixMyCar covers the most common Citroen C5 Aircross faults, including average repair costs

The Citroen C5 Aircross is a conventional family SUV that was first released in late 2017. It has a reputation for being both practical and affordable, though it lacks the style of some of its popular competitors like the Volkswagen Tiguan Allspace.

In 2022, the Aircross received a facelift, giving it a more contemporary appearance from the front end and a number of interior tweaks, including a new 10-inch screen.

iStock-C5 Aircross2

What’s wrong with the Citroen C5 Aircross?

While the C5 Aircross has only been around for five years, a few common problems have made themselves known, including:

  • Interior wear and scratching

  • Computer software issues

  • DPF issues

  • Poorly welded components


Citroen C5 Aircross 2017-2022 faults

These common issues have been identified by Citroen C5 Aircross owners.

1. Unstable idling

Many Aircross owners report problems with the car idling unstably. Typically, this is caused by either a software or electrical malfunction in the ECU.

What repair is needed to fix an ECU fault & how much does it cost for a C5 Aircross?

If there is a problem with the ECU’s software, it can usually be plugged into a computer and reprogrammed. This should be done by a professional with the right equipment.

On average, Citroen ECU repairs cost £157.51 based on 2021 data.

2. Leaking fuel

Software and cabling issues may cause fuel to leak, which in turn increases the risk of fire. This is something you should seek to resolve immediately should you notice a leak. 

What repair is needed to fix a fuel leak & how much does it cost for a C5 Aircross?

A mechanic will need to identify where fuel is escaping from and patch up the leak, as well as resolving the initial problem that caused it. 

It costs £62.89 on average to fix a basic leak on a Citroen, but the total repair bill is likely to be considerably more than this.

3. Ineffective DPF

Some Citroen C5 Aircross models may have a diesel particulate filter that doesn’t meet the required specifications. Symptoms could include a strong smell of diesel in and around the car; a loss of power; excessive smoke; and increased fuel consumption.

What repair is needed to fix an ineffective DPF & how much does it cost for a C5 Aircross?

Since this fault is caused by the way the car was manufactured, rather than developing over the course of the vehicle’s lifetime, Citroen has issued a recall.

Replacing a Citroen DPF costs £231.77 on average according to our data from 2021.

4. Excessive emission of Nitrogen Oxides

Computer software used strictly in after-sales operations between October 2020 and January 2021 was incorrect, leading to Nitrogen Oxide emissions above the legal limit. 

What repair is needed to fix excessive Nitrogen Oxide emissions & how much does it cost for a C5 Aircross?

This problem resulted in another recall by Citroen. To restore the emissions to an acceptable level, the vehicle’s software (the ECU) would need to be reprogrammed. 

Citroen engine control unit repairs cost £157.51 on average.


Citroen C5 Aircross 2017-2022 recalls

Recall DateReason
3rd Feb 2020Trailer tow ball may not be correct to specification
19th Aug 2020Urea injector may block and lead to Nox emissions exceeding regulatory limits
13th Nov 2020Filtering performance of DPF may not meet required specification
21st Jan 2021Welding of towbar components might not meet required specifications
5th Mar 2021Welding of towbar components might not meet required specifications

iStock-C5 Aircross3

Citroen C5 Aircross Hybrid problems

Hybrid versions of the C5 Aircross haven’t been available for as long as their regular petrol and diesel counterparts, so there is relatively little information available regarding common problems. 

Certain issues identified above, such as with the ECU and leaking fuel, may also apply to hybrid Aircross models. If you’re not sure whether your vehicle is affected by a recall, get in touch with the manufacturer or use the government website.


Having problems with your Citroen C5 Aircross? Whatever the issue, WhoCanFixMyCar can help you find the right garage at the right price.

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