Common EGR Problems

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EGR Valve Blocked Up - EGR RemovalEGR Removal is becoming a popular choice for motorists as they become more problematic and expensive to repair/replace. The EGR valve gets blocked up for a number of reasons and when it does, it can effect the performance of the vehicle and become a costly fix. We can completely de-activate the EGR system on most vehicles old & new, our service is a completely bespoke and custom EGR delete service from start to finish. For more information, please call us for a quote today on 0844 847 9999.

IF YOU’RE HAVING EGR PROBLEMS, WANT A QUOTE FOR REMOVAL OR EVEN JUST SOME FRIENDLY ADVICE – CALL US TODAY ON 0844 847 9999.

Click Here To Find A Sinspeed Approved Dealership Near You – We Operate A Nationwide Service Covering The UK & Ireland.

What is an Exhaust Gas Recirculation (EGR) Valve?
An Exhaust Gas Recirculation Valve, often referred to as an EGR valve is a mechanical flap designed to recirculate exhaust gasses back into the engine before they exit the exhaust into the atmosphere. This means that the gasses are going through the combustion cycle twice before exiting and so reducing the emissions of the vehicle.

In more technical detail, the EGR valve recirculates exhaust gasses back into the air/fuel mixture which in turn then dilutes the air/fuel mixture enough to keep the NOx compounds within breathable limits. This is done by allowing a specific amount of exhaust gasses enter into the inlet manifold via the EGR valve (dependant on throttle position, speed of the engine, outside air temperatures and so on..). Doing so, however, does reduce the rate of combustion and reduces the temperatures produced per combustion cycle and the end result is not only a reduced level of NOx compounds but also a significant decrease in performance from the vehicle.

The Problem With The Exhaust Gas Recirculation (EGR) Valve System
When working with exhaust gasses, nothing is clean. Recirculating exhaust gasses is basically dumping the carbon-rich gasses back into the inlet manifold from the exhaust manifold or even from the turbocharger. It is expected that over time, carbon build up will occur and can interfere with the operation of the EGR valve flap. It could cause problems with the flap opening and closing properly.

If the vehicle is fitted with a turbocharger then the problems are more dramatic because with time, turbochargers are subject to wear & tear and so start leaking oil from the seals but naturally only in small quantities. This means not only will you have carbon-rich exhaust gasses passing through the EGR valve, but also oil. The oil & carbon mixture can quickly build up around the EGR valve and cause problems such as a sticky flap. – If your EGR valve flap is stuck open or stuck shut, then this is possibly the reason why.

Furthermore, the EGR valve system allows the leaking oil to pass up through the inlet system and into the inlet manifold and combustion chambers – where it shouldn’t be! – This will cause fluttering and loss of power as well as oil smoke.

EGR faults can cause various problems on a vehicle such as:

  • Loss Of Power
  • Smoke On Acceleration
  • Fluttering On Acceleration
  • Missfire
  • EGR Flap Position Sensor Faults

These are some of the more common faults which can be related to the EGR system. In some cases the EGR valve can be removed and cleaned but this is only a temporary fix until the carbon builds up again and causes future problems. Replacement EGR valves can vary in price from anything as little as £150 to as much as £600. EGR valves are fitted to both petrol and diesel engines.

The EGR Valve system effects all vehicles and below you can see we have had experience with all types of vehicles suffering from EGR problems.

  • Alfa Romeo Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Audi – 1.4 TDI, 1.9 TDI, 2.0 TDI, 2.5 TDI, 2.7 TDI, 3.0 TDI, 4.2 TDI, 5.0 TDI etc. Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • BMW & Mini Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Citroen Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Chevrolet Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Fiat Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Ford Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Honda Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Hyundai Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Jaguar Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Kia Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Lancia Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Mazda Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Mercedes Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Nissan Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Opel Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Peugeot Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Renault Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Rover Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Saab Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Seat Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Skoda Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Toyota Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Vauxhall Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Volkswagen Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution
  • Volvo Exhaust Gas Recirculation Valve (EGR) problems – Sinspeed EGR Removal Solution

EGR Smoke ProblemsHow much are you expected to pay on average for repairs?
Ignoring the warning lights and allowing the EGR valve system to continue getting blocked up will eventually lead to a complete failure of the EGR system in which case it would require a replacement unit instead of cleaning. If you pick up on the problem and get it treated right away, then having the EGR removed and cleaned is not so expensive. It will vary from vehicle to vehicle – anything from £30 – £120 but if you leave it beyond repair, then you could be faced with a much bigger bill when taking into consideration the cost of a new part and labour to fit the part.

How can SINSPEED help reduce this cost & what are the options?
Other than cleaning and replacing the EGR valve system, there are two other more permanent solutions. Cleaning / replacing is a temporary fix to the on-going issues that many motorists are experiencing. So, what are your other two options?

  • Blank off the EGR valve
  • Custom EGR Delete (De-activation) Session

Blanking off the EGR valve was common practice on older vehicles where it wouldn’t interfere with the on-board engine management system, also known as the Engine Control Unit (ECU). However, it is not advised to blank off the EGR valve on newer vehicles because the ECU will detect a fault and this will in turn cause the ECU to log a fault code, turn on the engine management light which is an immediate MOT fail and also possibly put the vehicle in to LIMP HOME MODE (SAFE MODE) – This will restrict the power of the engine and also reduce the fuel economy.

We offer a safe and completely bespoke EGR Delete session whereby we de-activate the EGR system entirely from the vehicle. There is no need to install blanking plates and modify the original design of the vehicle which is also visible to others. We simply log into the vehicles on-board engine management system via the ECU and switch off the EGR valve to stop it opening and recirculating the mucky exhaust gasses and clogging up your engine. – Also, because we’ve done this professionally and via the ECU.. there will be no logged fault codes, no warning lights and no loss of power – because the ECU will accept our de-activation code and not look to register anything further from the EGR system.

What are the expected effects after having my EGR de-activated?
After we have carried out the EGR Removal and de-activated it from the vehicle’s ECU, your engine will be able to breath a lot better because all the air coming into the engine will be clean. This means the combustion of the air/fuel mixture will be quicker and more powerful – what’s more the engine will stay cleaner for longer and this will decrease the wear on the engine as well as other mechanical components.

You can expect the following gains from carrying out this simple EGR Removal service with us:

  • Sharper Throttle Response
  • More Power (+15% More BHP)
  • Better Fuel Economy (+20% More MPG!)
  • Increased Life Expectancy Of Engine

Our EGR Delete (EGR Removal) option is very affordable here at Sinspeed, for a quote today just call us on 0844 847 9999.

Blanking EGR / EGR Removal SessionWill this cause me to fail an MOT?
No, the EGR valve system is not a requirement for the MOT. Removing the EGR can in fact improve carbon emissions of the vehicle so it could in actual fact help to improve the vehicles emissions providing the EGR Removal (EGR Delete) session has been carried out professionally. We manually download the ECU data and scan through the 1000′s of data strings to manually de-activate the entire EGR system and modify certain parameters to then compensate for the vehicle not having the EGR system active. This will aid a more fuller combustion per cycle of the engine and help maintain better emissions from the vehicle.

For bookings & more information, please call us on 0844 847 9999.

Written by Jason

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6 thoughts on “Common EGR Problems

  1. Serkan

    VW Passat R line Tdi 2010 (engine size 1968cc) (Co2 143) (Bhp 110) EGR deleting requiring How much would it cost ?

    Reply
    1. admin Post author

      Hi Serkan

      Thank you for your enquiry,

      We can remove the EGR from this vehicle, for pricing please call us on 0844 847 9999 for a quotation or alternatively please visit our Contact page to send an email.

      Kindest Regards

      Jason
      Admin Team
      SINSPEED LTD

      Reply
  2. Dave Cooper

    Have 5 year old Mercedes C220 diesel . Was serviced in January. Only 32k miles. I am having to have the EGR replaced today ! The car has only done 500 miles since the service !
    Does the mercedes dealership inspect the EGR at the service ? Would they clean it ? If they don’t clean it , should they at least inform me of the condition of the EGR to avoid this expensive part ?
    Would really appreciate your reply

    Reply
    1. admin Post author

      Hi Dave

      Thank you for your enquiry,

      The EGR Valve doesn’t fall under a general service and it may have been functioning okay at the time. Replacing the EGR valve is really last resort and depends on the exact fault you’re having with the unit i.e. if the valve is stuck open or clogged up then simply cleaning the valve may unstick it and get it working again. We’re able to recondition EGR valves if they’re really clogged up bad and have mechanical faults. If the EGR valve has an electrical fault i.e. open / short circuit faults and it’s confirmed the EGR electronics are definitely causing the fault, then it would require replacing and this type of fault can happen at any time really without prior notice.

      Hope this helps and if you have any further queries, please do come back to us.

      Kindest Regards

      Jason
      SINSPEED

      Reply
  3. lee

    Hi can it be done on a 2008 ford fiesta 1.4 tdci… iv got a rough idle and im 80% sure my egr is stuck open would this solve the issue or would I need to close the valve first. ..

    Reply
    1. Jason Post author

      Hi Lee

      Thanks for the enquiry,

      You would need to close the valve or have an EGR blanking plate fitted – or clean the valve so that it closes when instructed to do so on the Duty Cycle %. I’ve sent you an email with some pricing and further information.

      Kind Regards

      Jason
      SINSPEED

      Reply

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