Fault code P0410 – a step-by-step guide to diagnosing and fixing it

The meaning of error code P0410 – Secondary Air Injection System Malfunction

P0410: Causes, signs and repairs

Error code P0410 is displayed and the check engine light is on - what does this mean?

DTC P0410 is recognized by the OBD system when a fault is detected in the secondary air system. This trouble code indicates that the exhaust aftertreatment system is not working properly. For various manufacturers, this error code can also be referred to as "Secondary Air Injection System Malfunction".

What causes can this error code have?

Defective secondary air pump
Blocked or damaged secondary air valve
Blocked air lines in the secondary air system
Defective secondary air pump relay
Damaged vacuum hoses
Corroded or loose electrical connections
Clogged secondary air pump air filter
Defective non-return valves in the system

What symptoms occur in parallel with fault code P0410?

Starting problems: The vehicle may be harder to start when the engine is cold
Increased emissions: Poorer exhaust emissions and possible failure to pass the main inspection
Uneven idling: Engine runs unevenly, especially during the warm-up phase
Loss of power: Reduced engine power at low engine speeds
Knocking noises: Unusual noises from the engine compartment when starting the engine
Black smoke: Dark exhaust fumes from the exhaust during the warm-up phase

How to fix the P0410 fault code problem?

Repairing the P0410 fault code requires a systematic diagnosis of the secondary air system.
Replace the secondary air pump completely if it is defective or makes unusual noises
Clean or replace the secondary air valve if it is clogged or mechanically defective
Check all vacuum hoses and air lines for cracks, blockages or leaks and replace them
Replace secondary air pump relay and check electrical connections for corrosion
Replace non-return valves in the system if they no longer close properly
Clean or replace the air filter of the secondary air pump if it is very dirty
Perform a complete EOBD diagnosis and delete the fault memory after the repair

FAQ - Frequently asked questions about DTC P0410

Can I continue driving with error code P0410?

Yes, the vehicle remains roadworthy, but you should visit a workshop as soon as possible. The code P0410 leads to increased emissions and can cause problems during the next emissions test.

How much does it cost to repair error code P0410?

The repair costs vary between 150-800 euros, depending on the cause. A new secondary air pump costs around 300-600 euros, while replacing hoses or valves is cheaper.

How do I recognize a defective secondary air pump on P0410?

A defective pump often makes unusual noises when starting or does not start at all. You can hear the sound of the pump in the first few minutes after a cold start.

Can I repair fault code P0410 myself?

Simple work such as replacing hoses is possible, however diagnosing dtc P0410 often requires professional OBD scanners and secondary air system expertise.

How long does it take to repair P0410?

Depending on the cause, the repair takes between 1-4 hours. Replacing the secondary air pump usually takes 2-3 hours.

Does the error code P0410 return after the repair?

If the repair has been carried out correctly, the code should not return. If it does, there may be an additional defect in the system that has been overlooked.

Vehicles in which error code P0410 occurs most frequently

Error code P0410 is a standardized OBD-II trouble code for problems with the secondary air system and can occur in all vehicles with this system, but is most common in the following vehicles:

BMW: E46 3 Series, E39 5 Series, E38 7 Series, X5 E53 (1998-2006)
Mercedes-Benz: C-Class W203, E-Class W210/W211, S-Class W220 (1998-2007)
Audi: A4 B5/B6, A6 C5, A8 D2 (1997-2005)
Volkswagen: Golf IV, Passat B5, Touareg (1998-2005)
Ford: Focus, Mondeo, Explorer (2000-2008)
General Motors: Chevrolet Silverado, GMC Sierra, Cadillac Escalade (1999-2007)
Toyota: 4Runner, Sequoia, Tundra (2000-2006)
Nissan: Pathfinder, Armada, Titan (2004-2010)

If the code P0410 occurs in your vehicle, it is important to rectify the problem promptly, as it not only pollutes the environment, but can also lead to problems during the main inspection. A professional diagnosis at a specialist workshop will help to identify the exact cause and avoid costly consequential damage.

How to change front wheel bearing on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC

151K views

Published on: 26/07/2018
How to change fuel filter BMW 3 (E90) [TUTORIAL AUTODOC]

241K views

Published on: 17/04/2019
How to change Front wheel bearing on VW GOLF 4 TUTORIAL | AUTODOC

177K views

Published on: 26/07/2018
How to change a rear brake pads FORD FOCUS 3 TUTORIAL | AUTODOC

169K views

Published on: 27/07/2018
How to change pollen filter / cabin filter on AUDI A6 (C6) [TUTORIAL AUTODOC]

150K views

Published on: 25/10/2019
How to change engine thermostat on PEUGEOT 207 [TUTORIAL AUTODOC]

147K views

Published on: 09/12/2020
How to change fuel filter NISSAN X-TRAIL T30 TUTORIAL | AUTODOC

139K views

Published on: 27/07/2018
How to change front wheel bearing TOYOTA YARIS XP10 TUTORIAL | AUTODOC

120K views

Published on: 26/07/2018

How to change serpentine belt on MERCEDES-BENZ A-Class (W169) – replacement guide

Free download PDF
1.38 MB
How to change engine oil and filter on BMW 1 Hatchback (F20) – replacement guide

Free download PDF
1.62 MB
How to change engine thermostat on VW Golf VI Hatchback (5K1) – replacement guide

Free download PDF
4.12 MB
How to change water pump & timing belt kit on Ford Fiesta JA8 – replacement guide

Free download PDF
7.83 MB
How to change front strut mount on AUDI A1 Hatchback (8X1, 8XK) – replacement guide

Free download PDF
3.8 MB
How to change water pump & timing belt kit on Peugeot 307 SW – replacement guide

Free download PDF
7.01 MB

Want to get more useful information?

Ask questions or share your repair experience on the car forum. Subscribe to updates so you don't miss out on new guides.

Ask on the forum

5 tools that make car repair incredibly simple | AUTODOC tips

49K views

Published on: 25/01/2024
Why does it burn oil? The main cause of oil consumption in EA888 Gen 1

118K views

Published on: 14/08/2025
Engine Overheating? Replace Your Cooling Fan to Fix It

7K views

Published on: 15/11/2020
Petrol or diesel: The engine showdown! | AUTODOC

4K views

Published on: 04/05/2021