September 2017

Mechanics CornerTips

Upgrading Headlight Bulbs – Which is the best for you?

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Let’s face it, nobody likes eye strain while driving in the dark. The scenario of driving in a storm with rain lashing down and very little headlight visibility isn’t a situation that’s ever one to be desired. Upgrading your headlight bulbs can make all the difference between spotting hazards earlier while also keeping you more alert thanks to less eye strain.

We’ve put together a guide to help you through this somewhat mind boggling process.

Mechanics CornerTips

Top Winter Car Care & Driving Tips

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With the Winter months looming upon us, Autumn is now the time to treat your vehicle to some TLC. There’s nothing worse than waking up on a pitch dark Monday morning, only to find you’ve got ready for work whilst half asleep, and then finding out your battery is as flat as a pancake. With icy country lanes, heavy snow, salted roads and below freezing temperatures, nobody loves to get stuck; or should we say slip?

We’ve listed some top tips to help you get by those winter months of car ownership.

Lighting

Think of it this way, your vehicles lights are effectively your eyes on the roads at night. When those nights begin closing in and the clocks change, don’t you find it surprising just how many cars you see with only one headlight working? Would you feel comfortable driving with only one eye open at night?

Top quality headlight bulbs go a long way into making a big difference. Here at Driven 2 Automotive we offer a wide range of replacement car bulbs, from performance and styling to long life LED’s. Once again the most popular halogen and HID headlight bulbs this year have been the OSRAM Night Breaker Unlimited range, of which the HID Xenon version won the Auto Express Best Buy award.

We always recommend changing bulbs in pairs, information on why is in this article. If your vehicles fitted with halogen bulbs then we don’t recommend using blue coated styling bulbs in the winter, this is because the coating reduces the lumen output (brightness). You could however try OSRAM’s new Cool Blue BOOST bulbs which have an increased wattage to help counteract this problem, however they’re unfortunately not ECE approved, therefore not road legal.

Headlight Lenses & Number Plates

On the subject of lighting, if your headlight lenses look to be in a faded, poor state, then lens restoration kits can help bring back headlights to look like new, thus increasing lens transparency and overall brightness. They work by using a special rubbing compound and various grades of ultra high grit wet-and-dry paper. Of course it also means a lot of elbow grease, however the result is the perfect solution to fixing yellow looking, UV damaged lenses.

Don’t forget to also keep your number plates clean, as nobody wants a wait for it….£1000 fine. YES £1000 for an unreadable number plate in the UK, you might as well check the bulbs are working whilst you’re at it.

 

Battery

According to statistics, a lead acid battery capacity drops by about 20% during freezing weather, and surprisingly drops all the way down to 50% capacity when temperatures decrease to about -30°C.

Of course that kind of temperature is very rare in the UK, with the lowest temperature ever recorded at -27.2°C  in 1995. To the contrary though, high temperatures can actually increase the capacity by 12% at 50°C, compared to it’s normal capacity at 25°C which is because of the increase in chemical reactions.

Due to this factor, a battery with an invisibly poor but still useable state during Autumn may simply not be adequate enough for those winter months. Batteries tend to last around 4/5 years so before winter sets in, we recommend performing a battery test with a multimeter, read our article on how to do this here.

 

Spark Plugs

Cold starts may require a healthy battery, however it also requires effective performance from the spark plugs. Reliability is vital for drivers, however fuel economy and efficiency is becoming increasingly important. According to the National Institute for Automotive Service Excellence, degrading spark plugs can cost drivers up to £0.80p per 4.5 litres with today’s prices.

Signs of needing to replace spark plugs can be an increase in fuel consumption, misfires with engine shake and also slow starting. We recommend Denso Iridium TT spark plugs or NGK Iridium IX, which are both are available in our shop. Not heard of Denso’s new Iridium TT plugs? Then check this post out.

Denso Twip TT Range

Tyres & Pressures

Although many of us stick to all season tyres to try and save money in the long run, winter tyres are specially designed to be more capable of handling the colder temperatures. The tyre structure stays far more flexible in freezing conditions instead of becoming firmer which means improved traction and handling. If you live in the middle of nowhere where conditions stay worse for longer, it makes sense to swap to winter tyres. Elsewhere however, justifying the costs may be more difficult. It comes down to personal factors such as; how much you have to drive in bad conditions and your confidence in bad weather.

Even if you have 4-wheel-drive, it’s no good if you can’t brake or turn well in icy conditions. After the initial outlay of purchasing a set of winter tyres which will last a good few winters, a local trip to the tyre fitter could mean far better winter grip for around £40 in fitting. Some suppliers sell winter tyres on steel wheels ready to fit to the car, the perk is that steel wheels are far cheaper than alloys and it doesn’t matter if they get damaged so much in the winter.

It’s important not to forget tyre pressures & tread depth. As temperatures get colder, tyres can lose up to 1psi per 10°C of temperature drop. Improper air pressures can cause uneven tyre wear and a loss of control. The basic rule is to try and check your car tyres every week, especially if you’re doing high mileage. For winter driving, a minimum of 3mm tread depth is recommended.

 

 

 

Starting the Engine

Prior to starting the engine in sub-zero temperatures, leave the ignition on for around 5 seconds. This allows the fuel pumps to pressurise the system and the ECU to perform a diagnostic check among many other processes. All of these pre-start electrical procedures use up battery power so it’s important not to overstress the battery by attempting to start the engine from cold at the same time.

We also recommend pressing the clutch in before starting the engine, this way the battery and starter motor are not stressed from rotating the gearbox shafts in thick, cold oil which causes resistance. On some vehicles this is a built-in feature: 1) for the reason above and 2) for safety in-case the car is left in gear.

Once started release the clutch pedal slowly. Do not subject a cold engine to heavy loads immediately, the chances are though that you’re going to be warming up the car first anyway whilst de-icing the windows!

 

Windscreen Washer Fluid & Wipers

Winter is the worst time to run out of washer fluid, a good piece of advise is to always carry a pre-mixed bottle in the boot for emergency use. Consequently check your wipers by running your finger down the blades to check for cracks and tears and replace if need be. Always make sure your wipers are at their resting (off) position before turning the engine off, this can stop fuses blowing in-case your wipers freeze to the windscreen overnight.

Chips can also grow to large cracks in cold weather very quickly, so it’s best to get them repaired as soon as possible. Give your windscreen a thorough clean inside and out as this helps reduce glare at night. It might sound odd, but turning the air conditioning on can help demist windscreens much faster than without using it.

Anti-freeze

Nobody wants frozen coolant in their engine and radiator, be sure to check whether your coolant level is correct. We recommend a 50/50 mix of anti-freeze to water for the winter. Did you know that anti-freeze can actually help stop a car overheating in the summer as it has a higher boiling point than water does?

Interior

During winter, damp can begin to cause that horrid, mildew type smell. Give your interior a good clean and also check the spare wheel bay as this is an often overlooked area that’s prone for damp mould to build up in, we also recommend replacing the pollen filter (a.k.a cabin filter) to provide fresh-filtered air.

 

Driving Tips

  • Don’t let air out of your tyres in the winter to try and increase grip, it doesn’t work and is very unsafe
  • Leave plenty of room when going uphill so that halfway up you don’t have to stop
  • In really bad snow and icy conditions, is it really worth risking it? No
  • Apply brakes more gently than usual
  • Gentle manoeuvres are the key to driving in ice and snow
  • Try to get up earlier to give you time to de-ice the car
  • If your car doesn’t have a key fob, you can use a lighter to heat up frozen locks
  • Never drive through flood water!
  • Allow extra time for winter journeys.
  • In-case of unexpected delay, keep at least 1/4 tank of fuel in the car.
  • Don’t drive off with a small hole cleared in the windscreen
  • Clear all windows using a scraper and de->>>>>>>>>>>>>>icer, hot water will eventually freeze again if it’s still below 0°C
  • Plan routes to favour big roads, which are more likely to be cleared and gritted.
  • Try not to park in areas which are prone to flooding or under trees where snow can fall heavily on the car (see pic)

 

That’s a lot of snow.

 

Mechanics CornerTips

How To Check Your Car Battery With a Multimeter

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Knowing how to perform a simple test of a car battery with a multimeter can save a lot of time and hassle over the winter. Car batteries lose about 20% of their capacity at 0°C compared to 25°C, so it’s vital to give them a periodic check to stop you getting stranded.

How to Test Your Vehicles 12v Battery

  • First the battery needs to be in a resting state, so leave the car overnight. This allows the alternators given charge to the battery from driving around to drop to it’s ‘resting’ voltage, which is the measurement you want to take. The resting charge is what starts the engine on freezing mornings don’t forget!
  • On some vehicles you’ll need to know your cd/radio players unlock code, as when the battery is disconnected and reconnected, it will reset.
  • Open the bonnet
  • Remove the positive red terminal safety cover from the battery
  • Set your multimeter to 20 DC volts. The DC Volts symbol looks like a V with 3 dots above it with a horizontal line on top. See below:dc voltage symbol
  • Don’t use the symbol with a V and a squiggly line next to it, as that’s AC volts.
  • Before you begin testing, make sure the ignition and all of your vehicle’s lights are off.
  • Connect the red or positive multimeter test lead to your battery’s positive terminal.
  • Then, connect the black or negative multimeter test lead to your battery’s negative terminal.
  • Jot down the reading given by the multimeter

Any reading below 12.2v is very bad, bear in mind that this reading means the battery is only charged by about 50% which can be surprising for many people. A reading of 12.4v may just need an overnight recharge if it’s an old battery. However note that a 100% charged battery should read a healthy 12.6v+. If your battery won’t charge overnight to anywhere near these figures, then it’s completely bust.

Use the guide below to distinguish your batteries charge state:

  • 12.66 volts = 100% charged
  • 12.45 volts = 75% charged
  • 12.24 volts = 50% charged
  • 12.06 volts = 25% charged
  • 11.89 volts = 0% charged

Cold Cranking Amps (CCA) is the battery specification you want to look for when buying a new battery, as the higher the number means it’s better equipped to deal with colder weather.

Mechanics CornerTips

How to Change Your Spark Plugs & Why You Shouldn’t Use Copper Grease

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Should You Use Copper Grease/Slip/Anti-Seize on Spark Plug Threads?

With it being one of the most asked questions on the internet when it comes to spark plug changes, we wanted to make things far clearer. With even walk-in stores trying to use this as a tactic to sell their copper grease products, we dig to reveal the truth. So what what is actually correct and what’s wrong?

NewsProduct Releases

OSRAM’S NEW GOLF Mk6 Road Legal Black Edition Halogen to HID Headlights

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The 100% Road Legal Golf Mk6 Halogen to Xenon Conversion

OSRAM has unveiled a solution for VW Golf Mk6 enthusiasts who’ve yearned for a road legal halogen to xenon headlight upgrade, without the need to retrofit headlight washers or automatic levelling systems. The brand new OSRAM LEDriving Xenon GOLF VI Mk6 HID Black Edition headlights are just what they’ve been looking for; a completely legal conversion which requires absolutely no modifications necessary. Yes, no modifications at all, not even headlight washers or automatic beam levellers are needed.

Confused? So were we! That is until we asked Osram’s Speciality Products Business Unit Manager John Lancaster, how it was made possible:

“Headlight wash wipe systems and or self- levelling (HID) is required under ECE regulations if the light source (dipped beam) emits over 2000 lumens. So normal headlamps with D1 and D2 HID systems would require these to be road legal. The new Osram Golf Mk6 Black headlamp is under this level (main lighting D8 HID is just under 2000 lumens) so this does not require a wash wipe or self- levelling system to comply. A D8 HID system is 25W compared to the more commonplace 35W output of D1 and D2 systems. So the Black headlamp complies with ECE and is fully road legal, even though it has a HID bulb incorporated”

So there you go, a very clever design indeed.

With such a big advantage over any halogen bulb upgrade or projector retrofit, these will certainly make any Mk6 enthusiasts knee’s go weak. Also, as these headlamps are far cheaper (£749.99) than a full OEM Xenon conversion where headlight levelling and wash wipe systems are necessary, they ooze temptation.

You can order from our online shop here. We work very closely with OSRAM and are an official Approved Partner (see here), so you can be assured that you’re in good hands.

Order Here