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Peugeot · Known Issues

2021 Peugeot 3008 Problems: 5 Known Issues

2021 model year · 205+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 205+ owner reports, the 2021 Peugeot 3008 has 5 documented known issues, with 3 rated critical. The most serious are DPF Premature Blockage ($300-$2,500 repair), AdBlue System Malfunction ($300-$1,200 repair) and 1.2 PureTech Wet Timing Belt Degradation (Oil Contamination, Brake Assist Loss) ($500-$2,500 repair). Across all issues with published estimates, repair costs range from $100 to $2,500. DIY maintenance guides at au7o.io.

In This Article

  • 3008 Emissions2
  • 3008 Engine1
  • 3008 Transmission1
  • 3008 Electrical1
  • FAQ
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In This Article

  • Emissions2
  • Engine1
  • Transmission1
  • Electrical1
  • FAQ

All 5 Known Issues

Filter:
ALL YEARS202620252024202320222021202020192018201720162015201420132012201120102009

When Issues Typically Appear

AdBlue System Malfunction
25K-70K
DPF Premature Blockage
35K-80K
EAT6 Automatic Gearbox Shudder
40K-80K
025K50K75K100K mi
Community reported
90 owners

On the 2009-2026 Peugeot 3008, the 3008 diesel variants experience premature DPF clogging, with the larger vehicle weight and urban usage patterns contributing to incomplete regeneration cycles. The issue is more pronounced in pre-2017 models with the older DPF design.

This issue also affects: Citroen Berlingo, Citroen C4, Citroen C5 Aircross

Common Symptoms

  • DPF warning light
  • Engine limp mode
  • Increased fuel consumption
  • White smoke during regen

How to Fix

Force a DPF regeneration via diagnostic tool, top up Eolys additive, and advise sustained motorway driving. Severe cases require professional DPF cleaning or replacement.

Typical repair cost:$300 - $2,500

Research This Issue

Based on 90 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence90 owner reports
Community reported
60 owners

On the 2017-2026 Peugeot 3008, the second-generation 3008 BlueHDi models are plagued by AdBlue system faults, including false level readings and crystallized injectors. The vehicle displays a countdown to engine disable even with a full AdBlue tank.

This issue also affects: Citroen Berlingo, Citroen C4, Citroen C5 Aircross

Common Symptoms

  • AdBlue warning message
  • False empty tank reading
  • Engine disable countdown
  • SCR fault code

How to Fix

Replace the AdBlue quality sensor and injector nozzle. Flush the AdBlue lines to remove crystallization. Update SCR system software and reset counters.

Typical repair cost:$300 - $1,200

Research This Issue

Based on 60 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence60 owner reports

On the 2014-2022 Peugeot 3008, the 1.2 PureTech (EB2) three-cylinder petrol engine uses a timing belt that runs inside the engine oil ('wet belt'). The belt rubber degrades prematurely in aged or incorrect-spec oil, shedding particles that clog the oil pickup, oil ways and the brake vacuum pump, causing oil starvation, engine damage and loss of braking assistance. Stellantis launched UK safety recall R/2020/326 (campaign JZR) covering 22,580 vehicles including 3008 I and 3008 II built June 2013 to April 2017, and the wider belt problem on later builds has been handled through service actions and warranty extensions.

Common Symptoms

  • 'Engine fault: repair needed' warning on dash
  • Hard brake pedal / loss of brake assistance
  • Rough idle or misfires, loss of power
  • Low oil pressure warning light
  • Black rubbery sludge visible under the oil filler cap

How to Fix

Under recall/campaign JZR dealers update belt-wear detection software, inspect, and replace the timing belt and brake vacuum pump if contaminated; the sump and oil pickup should be cleaned of belt debris. Outside the recall, replace the wet belt early (around 6 years/60k miles rather than the original 10-year schedule) and use only the specified PSA B71 2010 0W-30 oil with shortened oil-change intervals.

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Typical repair cost:$500 - $2,500

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Jun 2026
Community reported
55 owners

On the 2014-2023 Peugeot 3008, the Aisin-sourced EAT6 six-speed automatic transmission exhibits judder and hesitation during low-speed manoeuvres and when pulling away from rest. Torque converter lockup calibration and fluid degradation are primary causes.

This issue also affects: Citroen C5 Aircross, Citroen DS3, Peugeot 308

Common Symptoms

  • Shudder at low speed
  • Hesitation pulling away
  • Harsh 1-2 shift
  • Jerky creep mode

How to Fix

Perform a complete ATF drain and refill with the specified Aisin fluid. Update the TCM software to the latest calibration. Persistent cases may need torque converter replacement.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Aisin ATF-93001 automatic-transmission fluid, AW-1 / Peugeot 9734R7

    Confirm gearbox tag, VIN, fill quantity and temperature procedure; do not use where an EAT8/AW-2 unit is fitted.

    CarParts247

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$200 - $1,500

Research This Issue

Based on 55 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence55 owner reports

On the 2017-2021 Peugeot 3008, second-generation 3008s with the i-Cockpit and NAC (Navigation Audio Connectée) head unit commonly suffer the central touchscreen going completely black, freezing, or rebooting in a loop every few minutes due to firmware bugs in the NAC software. Because climate control, reversing camera and parking-sensor displays run through the screen, owners lose access to those functions while it is down; the fault is the subject of Peugeot technical service bulletins.

Common Symptoms

  • Touchscreen goes completely black while driving
  • Screen frozen and unresponsive to touch
  • System reboots itself every few minutes
  • Loss of climate control adjustment, reversing camera and radio
  • Bluetooth/navigation dropouts before failure

How to Fix

First attempt a soft reset by holding the phone/source button for around 10 seconds; the lasting fix is a dealer (or USB self-service via Peugeot Update) NAC firmware update per the TSB. Units that remain unresponsive after reflashing require replacement of the touchscreen or NAC module.

Typical repair cost:$100 - $1,500

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026
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Frequently Asked Questions

What are the most common Peugeot 3008 problems?

According to Au7o's analysis of 205+ owner reports, the 2021 Peugeot 3008 has 5 documented issues. The most frequently reported are: DPF Premature Blockage, AdBlue System Malfunction, 1.2 PureTech Wet Timing Belt Degradation (Oil Contamination, Brake Assist Loss). Of these, 3 are rated critical and should be addressed promptly.

Is the Peugeot 3008 reliable?

The 2021 Peugeot 3008 has 5 known issues documented across 205+ owner reports. 3 issues are rated critical: DPF Premature Blockage and AdBlue System Malfunction and 1.2 PureTech Wet Timing Belt Degradation (Oil Contamination, Brake Assist Loss). 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.

How much does it cost to fix common Peugeot 3008 problems?

Repair costs for known Peugeot 3008 issues range from $100 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, DPF Premature Blockage, typically costs $300-$2,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2009-2026 Peugeot 3008 DPF Premature Blockage?

The 3008 diesel variants experience premature DPF clogging, with the larger vehicle weight and urban usage patterns contributing to incomplete regeneration cycles. The issue is more pronounced in pre-2017 models with the older DPF design. Repairs typically run $300-$2,500. Severity: high.

What is the 2017-2026 Peugeot 3008 AdBlue System Malfunction?

The second-generation 3008 BlueHDi models are plagued by AdBlue system faults, including false level readings and crystallized injectors. The vehicle displays a countdown to engine disable even with a full AdBlue tank. Repairs typically run $300-$1,200. Severity: high.

What is the 2014-2022 Peugeot 3008 1.2 PureTech Wet Timing Belt Degradation (Oil Contamination, Brake Assist Loss)?

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.

Data sourced from 205+ owner reports, NHTSA recalls, TSBs, and automotive forums.

The 1.2 PureTech (EB2) three-cylinder petrol engine uses a timing belt that runs inside the engine oil ('wet belt'). The belt rubber degrades prematurely in aged or incorrect-spec oil, shedding particles that clog the oil pickup, oil ways and the brake vacuum pump, causing oil st… Repairs typically run $500-$2,500. Severity: high.

What is the 2014-2023 Peugeot 3008 EAT6 Automatic Gearbox Shudder?

The Aisin-sourced EAT6 six-speed automatic transmission exhibits judder and hesitation during low-speed manoeuvres and when pulling away from rest. Torque converter lockup calibration and fluid degradation are primary causes. Repairs typically run $200-$1,500. Severity: medium.

What is the 2017-2021 Peugeot 3008 i-Cockpit Infotainment (NAC) Touchscreen Black Screen / Freezing?

Second-generation 3008s with the i-Cockpit and NAC (Navigation Audio Connectée) head unit commonly suffer the central touchscreen going completely black, freezing, or rebooting in a loop every few minutes due to firmware bugs in the NAC software. Because climate control, reversin… Repairs typically run $100-$1,500. Severity: medium.