Overview The Bosch ME7.4.4 and M7.4.4 ignition-injection ECUs have been developed to control the following functions: • engine torque, • sequential multipoint injection, • twin static ignition, • cruise control (optional), • L4 (EOBD)*/K'/ifL5 depollution standards, • engine cooling, • dialogue with the other ECUs on the CAN...
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The ECU is responsible for controlling the "coolant temperature warning" LED when the temperature reaches a critical level (risk of damaging the engine). To perform this function, a coolant temperature thermocontact switch is used. This is mounted directly into the engine block as it can be more reactive in the event of loss of coolant. The...

The coolant temperature sensor has two functions: • it informs the ECU of the coolant temperature in the cooling circuit and therefore the temperature of the engine, • it transmits the coolant temperature information to the temperature gauge on the control panel for non multiplexed vehicles. The ECU uses the coolant temperature...

The rear torsion bars are normally best left to a garage to adjust them, but if you're confident in your abilities and you can obtain the correct tools for the job, this is a modification that you CAN do yourself! Please be aware that this is quite a tricky task to undertake and that your actions could lead to malfunction of your rear...

If you'd like to lower the front suspension of your Saxo, this can be done in a number of ways. By far the cheapest option is to fit a pair of uprated, shorter springs. It is important to realise that the springs you will purchase are not simply shorter, the spring damping rate is also increased to compensate for the shorter spring length. On...
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Electronic immobiliser ignition key The Saxo electronic immobiliser device locks the engine management system as soon as the key is removed from the ignition, making the car immobilised. For all Saxo models, which do not use a keypad immobiliser (only early Mk1 Saxos have keypad) the ignition key contains an electronic component which ensures...

When lowering the front suspension of a Mk2 Saxo, one of the power steering fluid pipes sits closer to the driver's side steering rod, which can over time, rub through the power steering pipe. If/when the pipe splits / ruptures, the power steering pump empties all of the power steering fluid through the hole in the pipe. This leads to a total...
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Your rear brake pads tend to be the ones that get neglected... often only being remembered about just before, or just after MOT time. Changing the rear pads is actually a very simple task, so fear not! Getting Started... STEP # 1 Firstly, jack up the rear of your car with a trolley jack or alternative, then make the area safe for...

Changing the gearbox oil is something many people neglect; however the gearbox is a very important component, which should be looked after as well as possible. If you would like to change your gearbox oil, this is a relatively simple job and something which should be done atleast every couple of years... depending on the number of miles you cover...
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Colour coding certain parts of the Saxo dash can be quite a popular modification. Some people choose to buy stick on dash kits, which are available for approx £40, but I decided to strip my dash down and paint it using "chrome/alloy" effect spray paint. This guide will concentrate on spraying the centre dash console. Many people also choose to...