Question 1

What does a throttle body do?

Accepted Answer

In today's modern fuel injected cars, the throttle body is a critical piece of the air intake system that controls the amount of air flowing into the engine. It sits between the air intake and engine manifold where fresh air is pulled into the engine for the combustion process.The throttle body itself consists of a tube containing a pivoting flat valve (butterfly). When the driver presses the acceleration pedal the butterfly in the throttle body pivots to let more air flow into the manifold. When this happens, the throttle position sensor reports to the ECU that you have pressed the accelerator. The airflow sensor then detects more air and sends a message to the car’s computer to boost the amount of fuel being supplied by the injectors. This whole process is what enables your car to accelerate.A good air filter is absolutely critical to the healthy operation of the throttle body, because dirt buildup on its surface over time can cause the butterfly valve to stick, causing a rough idle and drivability issues. It is therefore important that both the air filter and the throttle body are well maintained and kept clean.

Question 2

How often should a throttle body need replacing?

Accepted Answer

In today's modern fuel injected cars, the throttle body is a critical piece of the air intake system that controls the amount of air flowing into the engine. Because it is crucial to the healthy running of your vehicle, the throttle body should be well maintained and cleaned at least every 75,000 miles.If you begin to notice any signs that your throttle body might be failing, such as a rough idle, frequent stalling or unreliable acceleration, you should book your car in to have the air flow system and the throttle body inspected as soon as possible. When the throttle body begins to fail it will get progressively worse (and more dangerous!) over time.

Question 3

What happens during a throttle body replacement?

Accepted Answer

Our certified mechanics will:
Analyse the ECU to see if there are any related fault codes.
Inspect the throttle body and air intake system.
Replace the throttle body if there are issues with it.
Clean the air intake system of dirt and residue.
Advise if any other parts need to be replaced.
Finally they will run the engine and test drive the car.

Question 4

What causes a throttle body to break?

Accepted Answer

Like most car parts, over time the throttle body will experience wear and may begin to fail. Another common issue is caused by the filth, carbon, and dirt that can build up in the throttle body housing and air intake system, creating problems with air flow. This interrupts the perfect mixture of air and fuel and can cause the butterfly valve to get stuck. Therefore regular cleaning and maintenance of the system and throttle body is crucial for a healthy and reliable car.

Question 5

What are the symptoms of a bad throttle body?

Accepted Answer

Usually, there a few signs you can look for:
A very poor or rough idle
Poor or unreliable acceleration
Excess fuel consumption
Car misfiring
A delay from when you step on the acceleration until the car responds
A visibly dirty throttle body
Stalling more frequently
Check engine light comes on

Question 6

How often should you replace your throttle body?

Accepted Answer

There is no set lifespan when it comes to the throttle body, however it is suggested that you clean it thoroughly at about 75,000 miles. Cleaning the throttle body and air intake system allows your car to operate more smoothly and it helps prolong its life.

Question 7

What happens during a throttle body replacement?

Accepted Answer

Our certified mechanics will:
Analyse the ECU to see if there are any related fault codes.
Inspect the throttle body and air intake system.
Replace the throttle body if there are issues with it.
Clean the air intake system of dirt and residue.
Advise if any other parts need to be replaced.
Finally they will run the engine and test drive the car.

Question 8

What is the average life of a throttle body?

Accepted Answer

There is no set lifespan when it comes to the throttle body, however it is suggested that you clean it thoroughly at about 75,000 miles. Cleaning the throttle body and air intake system allows your car to operate more smoothly and it helps prolong its life. Like with many car components, if the throttle body is well serviced and properly maintained it should last a while.

Question 9

Can you drive with a bad throttle body?

Accepted Answer

Driving with a bad throttle body is not recommended. Your car could be very difficult to handle, it could break down whilst driving, or it could even accelerate unpredictably and uncontrollably - which is a very dangerous situation to be in on the roads. When the throttle body begins to fail it will get progressively worse (and more dangerous!) over time. You should book your car inn to be looked at as soon as you suspect there may be a problem.

Question 10

Does the throttle body deteriorate with age?

Accepted Answer

Like most car parts, over time the throttle body will experience wear and may begin to fail. Filth, carbon, and dirt can also build up in the throttle body housing and air intake system over time, creating problems with air flow. This interrupts the perfect mixture of air and fuel and can cause the butterfly valve to get stuck. Therefore regular cleaning and maintenance of the system and throttle body is crucial for a healthy and reliable car.

Question 11

The law, vehicle regulations and your MOT

Accepted Answer

If your throttle body is failing it could be affecting your fuel consumption and emissions. Because there are strict regulations around car emissions in the UK, excess fuel consumption and emissions could result in a fine or an MOT failure. It's important to keep your car well maintained to avoid unnecessary costs and harmful emissions.

Question 12

BMW

Accepted Answer

BMW AG is a German automobile and motorcycle manufacturer that was established over 100 years ago in March 1916. They also own Mini and Rolls Royce, after taking over the two British marques in 2000 and 1998 respectively.

Question 13

How popular is BMW in the United Kingdom?

Accepted Answer

BMW makes luxury vehicles and is possibly most famous for its sports saloon models. In 2018, BMW had 1.9m vehicles on the roads in the UK, a number that has been steadily increasing each year for the past decade.As one of the ‘big 3’ German marques, along with Audi and Mercedes, BMW carries a strong reputation for making high-quality stylish vehicles, and have captured a large section of the UK market.

Question 14

Luxury family and business models for every driver

Accepted Answer

Probably most popular for the 3 Series and 5 Series saloon models, BMW has got every possible angle covered for the more discerning drivers.The full range includes everything from the 1 Series city car to the full-size saloons and sports coupes of the 7 and 8 Series models.To provide everything you’d ever need for family motoring there’s a seven-seat MPV, their range of X model SUVs, and since 2014, the introduction of their plug-in electric i models. Top it all off with their M model high-performance supercars, the Z4 convertible and the i8 Roadster—and you’ve got the full package.

Question 15

BMW: High performance on and off the track

Accepted Answer

BMW has a successful history in a range of motorsports.They have been significant performers in touring car racing and rally driving, enjoyed success in Formula One with the BMW Sauber team, and BMW cars have been regular competitors and winners at Le Mans since the race’s early years.

Question 16

BMW’s reliability and reputation

Accepted Answer

BMW ranked 16th place out of 30 car brands in the What Car? Reliability Survey in 2018. BMW hasn’t always had the best reputation for reliability but to rank alongside marques such as Honda, Volkswagen and Fiat they’re holding their own alongside plenty of the other big names.

Question 17

Recent BMW recalls and reliability issues

Accepted Answer

Various recalls have been made on BMW models throughout their motoring history. The following are a list of the most recent in the UK and Europe.

Question 18

22/03/2019 – BMW X5 (2018)

Accepted Answer

Incorrect tightening torque of left front seat fixing bolts

Question 19

22/03/2019 – BMW X5, 5 Series (2000–2003)

Accepted Answer

Potential rupture of driver front airbag inflator

Question 20

04/03/2019 – BMW X1 (2018–2019)

Accepted Answer

Rear lights may be fixed with incorrect securing units

Question 21

01/03/2019 – BMW X5, X6, 7 Series, 6 Series and 5 Series (2009–2011)

Accepted Answer

Auxiliary water pump’s electronics could lead to a short circuit

Question 22

01/02/2019 – BMW X5 and X6 (2007–2010)

Accepted Answer

The idler pulley bolt could become loosened

Question 23

21/01/2019 – BMW M3, M4 and M4 convertible (2016)

Accepted Answer

The flange of the propshaft may become detached

Question 24

27/12/2018 – BMW X6 (2014–2015)

Accepted Answer

EGR module cooler could leak

Question 25

27/12/2018 – BMW 4 Series (2013–2015)

Accepted Answer

Exhaust gas recirculation module cooler could leakAll recall information sourced from gov.co.uk data.

Car make and model	Average dealer price	Price estimate	Average savings
BMW X6	£660	£535 - £654	£65
BMW 6 Series Gran Coupe	£660	£535 - £654	£65
BMW 8 Series	£684	£526 - £643	£99
BMW 2 Series Coupe	£448	£339 - £414	£71
BMW 5 Series	£711	£538 - £658	£114
BMW 2 Series Active Tourer	£442	£343 - £419	£61
BMW 2 Series Cabriolet	£448	£339 - £414	£71
BMW X4	£442	£343 - £419	£61
BMW 5 Series Gran Turismo	£442	£343 - £419	£61
BMW X2	£442	£343 - £419	£61
BMW 3 Series	£660	£535 - £654	£65
BMW X5	£750	£553 - £676	£135
BMW 7 Series	£711	£538 - £658	£114
BMW 1 Series	£431	£318 - £389	£78
BMW 2 Series Cabriolet	£448	£339 - £414	£71
BMW 4 Series Gran Coupe	£386	£316 - £386	£35
BMW 5 Series	£711	£538 - £658	£114
BMW 6 Series	£750	£553 - £676	£135
BMW i8	£430	£334 - £408	£59
BMW 2 Series Coupe	£448	£339 - £414	£71
BMW X6	£660	£535 - £654	£65
BMW 6 Series Gran Coupe	£660	£535 - £654	£65
BMW 8 Series	£684	£526 - £643	£99
BMW 2 Series Coupe	£448	£339 - £414	£71
BMW 5 Series	£711	£538 - £658	£114

BMW throttle body replacement

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Our expert insights into BMW throttle body replacement

Our expert insights into BMW throttle body replacement

What does a throttle body do?

What are the symptoms of a bad throttle body?

What happens when we do a throttle body repair on your car?

How much does it cost to fix my car?

What does a throttle body do?

What are the symptoms of a bad throttle body?

What happens when we do a throttle body repair on your car?

How much does it cost to fix my car?

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London, UK

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London, UK

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London, UK

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London, UK

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London, UK

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London, UK

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We cover all makes and models — anywhere in the UK

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