Exhaust Servicing

Problems with your exhaust can affect your cars performance and fuel consumption.



Look or sound like there’s a problem with your exhaust? Not seen that warning light before? The problem might be more serious than you think, and a wait-and-see attitude could end up costing you dearly.

Problems with your exhaust can affect your cars performance and fuel consumption. It can also make your car release more harmful emissions, polluting the environment and potentially making your car unsafe.

Duffy Motors is always available for over the phone advice. If you have a problem, please don’t hesitate to get in touch.

Call: 0161 834 4168


Find problems with your exhaust

It can be difficult to spot problems with your exhaust. If your exhaust is sputtering or banging, then you should get it checked out.

Equally, you never ignore an “emissions control” warning light or a “diesel particulate filter blocked ” warning light.

Remember, your best bet of spotting a problem is still getting your car serviced regularly.

Look out for:

  • Sputtering or banging sounds
  • Car sounds louder than usual
  • Warning lights (refer to manual)
  • Cracked pipes
  • Corrosion
  • Rust

Catalytic convertor and diesel particulate filters

Catalytic convertors (on petrol cars) and diesel particulate filters (on diesels) are probably the most important components in your exhaust – at least from an emissions and safety standpoint.

Catalytic convertors and diesel particulate filters prevent harmful emissions like carbon monoxide, nitrogen oxide and diesel particulates (lots of black soot) from being released into the atmosphere.

Catalytic convertors have been fitted on all cars since 1993 but diesel particulate filters have only been fitted on modern cars (since 2009).


Blocked diesel particulate filter

Blocked diesel particulate filters can easily stop your vehicle from travelling anywhere. Modern diesel cars are designed so that the filters clean and unblock themselves with natural use. Travelling on motorways and A-roads helps the car burn extra fuel and clean away any blockages.

One big problem that we encounter regularly, however, is diesel particulate filters blocking up because the wrong type of oil is used in the car.

If you choose a rock bottom price service for your car, then there is no guarantee that they will use the correct type of oil for your vehicle. This can lead to all sorts of problems because your car won’t be able to regulate itself. One of the most immediate problems you will encounter with a diesel car is a blocked diesel particulate filter.

We can help you manually unblock the filter, but if it is left to build up ten the filter may need to be replaced. This part can easily cost more than £1,000 so make sure you get your vehicle checked before the problem worsens.

If a ‘diesel particulate filter’ warning light flashes up on your car, give us a call and we will be able to offer more advice over the phone.

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