What is Hill Start Assist and Do I Need it

For most of us, driving a car or van is second nature. We usually don’t give much thought to the physics that makes our vehicle move. But understanding the basics of how your vehicle works can help you better understand its capabilities and limitations – especially when it comes to hill starts.

If you’re wondering what hill start assist is and if you need it, we will examine hill start assist, what it is, and if you need it. Read on for more information about this incredibly helpful feature.

What is Hill Start Assist?

Hill start assist (or hill holder) is an electronic system used in some vehicles to prevent them from rolling backwards when starting off on a steep incline. This system uses the brakes to hold the vehicle in place while the driver switches between the brake pedal and accelerator, allowing for a smooth transition from stationary to moving forward. Without this system, drivers would have to rely on their clutch and accelerator control alone - making it difficult to avoid roll-back during take-off.

How Does Hill Start Assist Work?

Hill start assist prevents your car or van from rolling backward by using an internal valve connected directly to the braking system. When your foot moves off the brake pedal and onto the accelerator, pressure builds up in this valve, which then transfers pressure back into each wheel that was previously braked. This pressure keeps all four wheels locked until enough torque has been generated by your engine to pull away safely without having any roll-back occur.

It is important to note that this system will not keep you from rolling back on truly steep hills as there are limits as to how much weight can be held by a single valve in each wheel - so it's still best practice (and even legally required) for drivers on steep hills to use handbrake instead of relying solely on hill start assist systems.

Do I Need It?

The short answer is no - but having it certainly makes life easier! Most modern cars come with some form of hill start assist as standard equipment; however, if you own an older model car or van then you may need to look into adding one yourself.

Even if you are confident in your clutch and accelerator control skills, having an electronic system like this can still be incredibly helpful in certain situations - such as when taking off from a standstill on wet surfaces or icy roads where traction is limited and extra caution needs to be taken!

Ultimately, whether or not you decide this feature is necessary depends entirely upon your driving style and preferences so do some research before investing any money into such a feature.

In conclusion, hill start assist systems can be incredibly useful for drivers who regularly find themselves starting off on steep inclines or slippery roads where extra caution needs to be taken when accelerating away from a standstill position.

While these systems are now standard equipment in most modern cars and vans, those with older models may need to look into purchasing this feature separately depending on their individual needs and preferences while driving. Ultimately though, having good clutch and accelerator control at all times should always be prioritized regardless of whether or not such a feature exists in your car or van!

IMI Certified Tuning Specialist

MPG Tuning Ltd
Unit 44 Rumerhill Business Estate
Cannock, Staffordshire, WS11 0ET


 Tel: 01543 466662


MPG Tuning Offer Professional ECU Remap and Tuning services including but not limited to ECU Remapping, EGR Delete, DPF Solutions, VAG Emissions Recall Scandal Rollback, Tricore Processor Programming, Boot Mode, and Traditional Chip Tuning.

MPG Tuning is based in Cannock Staffordshire but serves customers from further afield typically from the following areas, Lichfield, Burntwood, Rugeley, Stafford, Brownhills, Walsall, Wolverhampton, Birmingham, Tamworth plus many more areas throughout the West and East Midlands.

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I went for a remap on my T5 as it had an awful flat spot around 2800 rev's I got great personal service and its like having a new engine in the van smooth power and greater economy.... Highly recommended wish I'd done it months ago it would have paid for it self already thanks a lot hills are no longer a drag.

Adrian McManus

Popped in to see Mike on Friday to have my A4 2.0TDi 170hp remapped. Have to say I was a little pessimistic at first having being told by another firm that remaps on these were a nightmare so was expecting the worst! Thankfully, nothing of the sort, straight in, one error message unknown but Mike worked it out and all done in no time. Straight out for a test run and the drive is very different, certainly mid ranged (where these engines seem to suffer) pulls away nicely and can definitely feel the benefit. Best money I've ever spent on a car in, well, forever! Thanks again Mike

Mark Patterson

Had the ECU my 320D remapped by Mike yesterday. Very impressed with the results. Noticed it straight away after having it done. Service was also great, talked me through all of it to get exactly what I wanted out of it. Highly recommend mpg tuning.

James Aston

Took my Civic Mk VIII 2.2 CDTI to Mike following a recommendation from a friend who's had his last few cars remapped at MPG., professional service and answered any questions I had. Customised remap that gave me a good balance between performance and economy. Mike was happy to let me watch the whole procedure and explained what he was doing. Makes a good brew as well! Would highly recommend, Will definitely bring my future motors here.

Dan Wright

Just had the ECU on my BMW 320D remapped and it is absolutely superb the power is unbelievable and the service is outstanding would recommend it to anybody he has transformed my car from 160 bhp to 207 bhp no smoke at all and the power delivery is awesome throughout all of the gears really happy.

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Had my Astra 1.9cdti remapped here with EGR delete for a great price, I have now got the full power and yes it's rapid lol.... Mike was helpful and talked me through it all and also good after care as well. Thanks again.

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Had my T5 remapped today. Over the moon with the results! Really reasonable price and customer service is second to none! Would highly recommend!

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I had my car remap done and I'm really pleased with MPG Tuning. Great atmosphere, great service and I will recommend it to all my friends. Thank you once again. Renault Megane 2.0 Turbo petrol with 165 hp standard

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Took my Astra estate for a ecu remap, excellent job feels a lot more responsive!

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Mike remapped my car. Perfect professional service from start to the end. For less than 2 hours everything was done. If you want a different feeling when you are driving MPG Tuning is your place to go.

Dimitar Dimitrov

My boyfriend has exactly the same car as me 1.5 diesel fiesta, had his remapped and was over the moon with it. I had never thought of having a car remap but after driving his, mine felt heavy and slow so decided to get mine done too, now I am converted I love it even more and I am getting about 80-90 miles per tank better than before, very happy , great friendly service and awesome cuppa while we waited

Kelly Williams

Had my renault van remapped at mpg tuning, awesome power, can now keep up with pigeons, thanks Mike for an excellent job 👍👍



Our lead technician has over 16 years’ experience in the tuning industry and long term connections with some of the Worlds most experienced data programming and tuning specialists. We are extremely passionate about our customer satisfaction and strive for a perfect result every time.

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