Renault Megane III exhaust manifold replacement, made easy
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Our expert insights into exhaust manifold replacement
What does an exhaust manifold do?
Exhaust manifolds are designed to collect exhaust gases from the engine cylinders and transport them into the exhaust pipes for expulsion. The exhaust manifold is attached to the engine cylinder heads and has ports that collect exhaust gases from each individual engine cylinder.
What are the symptoms of a bad exhaust manifold?
Below are the top three symptoms that could indicate you need to replace your exhaust manifold:
A noisy engine exhaust
Burning smell coming from the engine
Decreased power, acceleration, and fuel efficiency
What happens when we do an exhaust manifold replacement on your car?
Our certified mechanics will:
Inspect the exhaust manifold.
If the exhaust manifold is visibly damaged or cracked, it will be replaced.
If necessary, they may also replace the exhaust gasket and clean the exhaust ports. The manifold's mounting bolts may also need to be replaced.
Advise if other related components need to be replaced.
They will then check for any leaks around the manifold and test drive the car.
How Fixter works
Simply book online and we'll handle the rest
Upfront, fair pricing, with free collection & return and no hidden costs. Our in-house experts will then choose the ideal garage to work on your car.
A fully-insured Fixter driver will pick up your car, whenever and wherever works for you. (If you’d prefer to drive your car to the garage yourself, that’s not a problem!).
Our in-house experts will keep you updated, and your card is only charged once all work has been satisfactorily completed and approved by our team. Your driver will then drop the car back when it’s convenient for you.
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What does an exhaust manifold do?
The exhaust manifold is the first part of your vehicle’s exhaust system. It is bolted directly onto your car’s engine and collects your engine’s emissions. The exhaust manifold receives the air/fuel mixture from the multiple cylinders (either four, six or eight) in your vehicle’s engine and funnels them all into one pipe.
The exhaust manifold then completely burns any unused or incomplete burnt gases at a very high temperature. Finally once all the gases are in one place and completely burnt, the manifold sends the emissions into the rest of the exhaust system to eventually be expelled.
The exhaust manifold also performs another very important role. It houses an oxygen sensor which inspects the amount of oxygen entering the system. This data is then sent to the fuel injection system where the amount of oxygen used in the fuel/air mixture can increase or decrease.
Renault
Groupe Renault is a French multinational automobile manufacturer, established over 120 years ago in 1899.
How popular is Renault in the United Kingdom?
This French marque has around 1.4million vehicles on the road in the UK today. Their numbers peaked between 2007 and 2008 at over 2million vehicles, yet have been on a slow decline ever since.
Sensibly priced options for middle of the road vehicles
Renault makes a wide-ranging selection of respectable vehicles.
As you’ll find with most manufacturers in today’s market, the cream of their crop lies with their SUV models. Other stand-outs are the RS models built for a much more fun driving experience and the electric models that are also sitting impressively in a steadily growing market.
Renault: a constant contender in all manner of motorsports
In the 1970s, Renault set up a dedicated motorsport division that went on to take the winners title in the Le Mans 24 Hours in 1978, with the Renault Alpine A442. They have been competing and achieving successes in both rallying and Formula One ever since.
Renault Formula One
Renault debuted their first formula one car (and team) at Silverstone in 1977; it was the first of its kind to include a turbo engine. The team continued until 1986 and shortly after, in 1989, they began to supply engines to the successful Williams-Renault car.
The Benetton team was renamed Renault F1 in 2002, and the team went on to win the constructors championship in both 2005 and 2006 with Spaniard Fernando Alonso at the wheel.
More recently, Renault powered the winning Red Bull Racing team in 2010 and returned to racing as a team in their own right, from the 2016 season onwards.
How often should an exhaust manifold need replacing?
Due to the extreme temperature fluctuations inside the engine, the exhaust manifold is especially prone to wear, however it shouldn’t need to be replaced too often. We recommend having your entire exhaust system inspected every two to three years. If the manifold appears to be worn or damaged in any way, it should be replaced to ensure safe driving conditions.
Always look out for the above symptoms of a failing exhaust system, to ensure you get it fixed early and avoid any further, costly repairs.
What happens during an exhaust manifold replacement?
Our certified mechanics will:
Inspect the exhaust manifold.
If the exhaust manifold is visibly damaged or cracked, it will be replaced.
If necessary, they may also replace the exhaust gasket and clean the exhaust ports. The manifold's mounting bolts may also need to be replaced.
Advise if other related components need to be replaced.
They will then check for any leaks around the manifold and test drive the car.
What causes an exhaust manifold to break?
The exhaust manifold is exposed to extreme temperatures – it is constantly heating and cooling, which causes constant expansion and contraction. Despite being made of cast iron or stamped steel, over time manifolds can crack due to the stress from constant, extreme temperature changes.
When should an exhaust manifold be replaced?
Due to the extreme temperature fluctuations inside the engine, the exhaust manifold is especially prone to wear, however it shouldn’t need to be replaced too often. We recommend having your entire exhaust system inspected every two to three years. If the manifold appears to be worn or damaged in any way, it should be replaced to ensure safe driving conditions.
What are the symptoms of a bad exhaust manifold?
Usually, there a few signs you can look for:
A noisy engine exhaust
Burning smell coming from the engine
Decreased power, acceleration, and fuel efficiency
If the engine warning light comes on
When the engine makes more noise than usual
How often should you replace your exhaust manifold?
We recommend having your entire exhaust system inspected every two to three years. If the manifold appears to be worn or damaged in any way, it should be replaced to ensure safe driving conditions. Always look out for the above warning signs of a failing exhaust system, to ensure you get it fixed early and avoid any further, pricey repairs.
What happens during an exhaust manifold replacement?
Our certified mechanics will:
Inspect the exhaust manifold.
If the exhaust manifold is visibly damaged or cracked, it will be replaced.
If necessary, they may also replace the exhaust gasket and clean the exhaust ports. The manifold's mounting bolts may also need to be replaced.
Advise if other related components need to be replaced.
They will then check for any leaks around the manifold and test drive the car.
What is the average life of an exhaust manifold?
The lifespan of an exhaust manifold depends on the car, the driver and how often the car is used. In general, an exhaust manifold should last at least three years, but we recommend having your entire exhaust system inspected every two to three years. If the manifold appears to be worn or damaged in any way, it should be replaced to ensure safe driving conditions.
Can you drive with a broken exhaust manifold?
While you can technically drive with a broken exhaust manifold, it's neither safe nor legal and poses a number of issues when you're out on the road. Your exhaust plays a vital role in the healthy running of your car, therefore when the exhaust system experiences issues, it should be inspected as soon as possible.
Do exhaust manifolds deteriorate with age?
Yes exhaust manifolds are prone to wear and deterioration over time as they are constantly exposed to extreme temperatures. Despite being made of cast iron or stamped steel, over time manifolds can crack due to the stress from these constant, extreme temperature changes.
The law, vehicle regulations and your MOT
There are strict regulations regarding exhaust systems and car emissions. A car's exhaust system, including the manifold, cannot have any serious leaks, corrosion or cracks. An annual MOT tests both the exhaust system for leaks and deterioration and the emissions coming from the exhaust system.
Common questions about booking at Fixter
Common questions about booking at Fixter
All of our drivers are fully insured and your vehicle is always protected.
We put our drivers through rigorous vetting and training before they are able to drive your vehicle. All of our drivers must have at least 3 years of driving experience, hold a clean driver's licence, be over the age of 21, capable of driving both manual and automatic vehicles and pass a criminal background check.
Your vehicle will be assigned to a driver who is responsible for collecting it from your home, delivering it to the garage and returning your vehicle once all work is completed.
Sometimes we might coordinate with a garage for them to send their own driver to collect your vehicle. In this instance, you are protected as you would be if it was a Fixter driver.
One of our in-house mechanics will factor in the make and model of your car, as well as the work that needs doing. They will then allocate your booking to the most appropriate Fixter garage in your area, and we’ll email you to confirm.
Here’s why only 1 in 20 garages pass our selection criteria:
We only choose garages registered as a Limited Company, with a minimum of 3 years of trading.
We assess each garage's various established affiliations (e.g. Bosch / Unipart / Garage).
We perform an online audit: Fixter only selects garages with at least a 4 star customer rating.
We make sure to visit each garage in person. Our in-house mechanics evaluate the quality of equipment, staff qualifications, capacity, and technical capabilities of selected servicing centres. Fixter only works with garages which strictly use manufacturer-equivalent parts.
After all requirements are fulfilled, we negotiate preferential terms with each selected (including parts, labour, oil, and MOT test rates), so we can pass it along to our customers.
All parts used in repairs and services carried out by Fixter are either manufacturer parts or equivalent. This guarantees that only the best quality parts are used in your vehicle. We offer a 12-month warranty, meaning that should anything should go wrong with the parts or labour we’ll take care of it, free of charge.
We take your card details when you book online, but nothing is charged to your card until all the work has been approved by our in-house experts, and satisfactorily completed.
No extra work will be carried out without your consent. If additional work is required, one of our in-house experts will call you to walk through any diagnostic reports, recommendations or additional quotes from the mechanic working on your car. We check every quote to make sure the work is required and has been fairly priced.
Note: If you need to update your payment details to pay for your booking, the team will send you a secure link to add the new card details.
If your car fails its MOT at one of our garages, but you believe that your car should have passed, you'll have the option to take your car to another garage to do a new MOT test. If your vehicle passes the MOT at another garage, we’ll refund you for the original MOT test that you carried out with us. Collection and delivery fees are non-refundable.
All Fixter bookings are covered by a 12-month warranty on parts and labour.
If there’s a problem (with either parts or labour) up to 12 months after your booking date, we’ll sort it out for you, completely free of charge.
Just email support@fixter.co.uk or call our team on 0330 808 9527 and we’ll take care of it.
Note: this doesn't apply to an air con regas as leaks can occur at any time.
We understand that things change.
If you need to cancel or change your booking, please let us know asap. Our agents spend time finding you a top-rated garage, which is then booked to take care of your vehicle. In many cases, parts are ordered in advance. As a result, we operate a 72-hour cancellation policy. If you have a confirmed booking with us and need to cancel within 72 hours of the appointment, a cancellation fee of £20 may be applied.
We want to avoid that so our agents will work with you to try and find a new appointment instead. To discuss changing or cancelling a booking, please email or phone on 0330 808 9527.
Our team works Monday to Friday from 8:30 am to 5:30 pm.
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