Underbonnet check points
2.5 litre models (others similar)
1 Engine oil level dipstick
2 Engine oil filler cap
3 Coolant reservoir (expansion tank)
4 Brake and clutch fluid reservoir
5 Power steering fluid reservoir
6 Screen washer fluid reservoir
Engine oil level
Make sure that the vehicle is on level ground.
Check the oil level before the vehicle is driven, or at least 10 minutes after the engine has been switched off.
If the oil is checked immediately after driving the vehicle, some of the oil will remain in the upper engine components, resulting in an inaccurate reading on the dipstick.
The correct oil
Modern engines place great demands on their oil. It is very important that the correct oil for your vehicle is used.
|Engine oil grade:
||Multigrade diesel engine oil to VW spec 500 00 (viscosity between SAE 5W/30 and 10W/40) or 505 00 (viscosity between SAE 5W/30 and 20W/50)
||Multigrade diesel engine oil to VW spec 505 00 (viscosity between SAE 5W/30 and 20W/50)
• If you have to add oil frequently, you should check whether you have any oil leaks. Place some clean paper under the vehicle overnight, and check for stains in the morning. If there are no leaks, then the engine may be burning oil.
• Always maintain the level in the dipstick’s cross-hatched area (see photo 3). If the level is too low severe engine damage may occur. Oil seal failure may result if the engine is overfilled by adding too much oil.
The dipstick is brightly coloured for easy identification (see Underbonnet check points on page 0•11 for exact location). Withdraw the dipstick.
Using a clean rag or paper towel remove all oil from the dipstick. Insert the clean dipstick into the tube as far as it will go, then withdraw it again.
Note the oil level on the end of the dipstick; it should be in the cross-hatched area - never above the ‘MAX’ line or below the ‘MIN’ line. If topping-up is required (only if the level is between the cross-hatched area and the ‘MIN’ line, or below) add no more than 0.5 litre of oil at a time.
Oil is added through the filler cap. Unscrew the cap and top-up the level. A funnel may help to reduce spillage. Add the oil slowly, checking the level on the dipstick frequently. Avoid overfilling.
Should you need to renew the oil and filter, click below
Do not attempt to remove the expansion tank pressure cap when the engine is hot, as there is a very great risk of scalding. Do not leave open containers of coolant about, as it is poisonous.
• Adding coolant should not be necessary on a regular basis. If frequent topping-up is required, it is likely there is a leak. Check the radiator, all hoses and joint faces for signs of staining or wetness, and rectify as necessary.
• It is important that antifreeze is used in the cooling system all year round, not just during the winter months. Don’t top up with water alone, as the antifreeze will become too diluted.
The coolant level varies with the temperature of the engine, and is visible through the expansion tank. When the engine is cold, the coolant level should be between the MAX and MIN marks on the side of the tank. When the engine is hot, the level may rise slightly above the MAX mark.
If topping-up is necessary, wait until the engine is cold. Slowly unscrew the expansion tank cap, to release any pressure present in the cooling system, and remove it.
Add a mixture of water and antifreeze to the expansion tank until the coolant level is halfway between the level marks. Refit the cap and tighten it securely.
Should you need to replace the coolant, click below
Brake and clutch fluid level
All models have a hydraulically-operated clutch, which uses the same fluid as the braking system.
Hydraulic can harm your eyes and damage painted surfaces, so use extreme caution when handling and pouring it.
Do not use fluid that has been standing open for some time, as it absorbs moisture from the air, which can cause a dangerous loss of braking effectiveness.
Make sure that your vehicle is on level ground. The fluid level in the reservoir will drop slightly as the brake pads/shoes wear down, but the fluid level must never be allowed to drop below the MIN mark.
• If the reservoir requires repeated topping-up this is an indication of a fluid leak somewhere in the system, which should be investigated immediately.
• If a leak is suspected, the vehicle should not be driven until the braking system has been checked. Never take any risks where brakes are concerned.
The MAX and MIN marks are indicated on the side of the reservoir. The fluid level must be kept between the marks at all times.
If topping-up is necessary, first wipe clean the area around the filler cap to prevent dirt entering the hydraulic system
Unscrew the reservoir cap and remove it.
Carefully add fluid, taking care not to spill it onto the surrounding components. Use only DOT 4 fluid; mixing different types can cause damage to the system. After topping-up to the correct level, securely refit the cap and wipe off any spilt fluid.
Power steering fluid level
• Park the vehicle on level ground.
• Set the steering wheel straight-ahead.
• The engine should be turned off.
• For the check to be accurate, the steering must not be turned once the engine has been stopped.
• The need for frequent topping-up indicates a leak, which should be investigated immediately.
The reservoir is mounted at the front right-hand side of the engine compartment. The fluid level can be viewed through the reservoir body and should be between the MIN and MAX marks when the engine is cold.
If topping-up is necessary, first wipe clean the area around the filler cap to prevent dirt entering the system. Unscrew the reservoir cap.
When topping-up, use VW hydraulic fluid G 002 000 and do not overfill the reservoir. When the level is correct,securely refit the cap.
Screen washer fluid level
• Screenwash additives not only keep the windscreen clean during bad weather, they also prevent the washer system freezing in cold weather – which is when you are likely to need it most. Don’t top up using plain water, as the screenwash will become diluted, and will freeze in cold weather.
On no account use engine coolant antifreeze in the screen washer system – this could discolour or damage the paintwork.
The reservoir for the washer systems is located on the front right-hand side of the engine compartment. If topping-up is necessary, open the filler cap.
When topping-up the reservoir a screenwash additive should be added in the quantities recommended on the bottle.
It could also be time to replace the wiper blades. For details, click below
Only fit good-quality wiper blades.
When removing an old wiper blade, note how it is fitted. Fitting new blades can sometimes be tricky, and noting how the old blade came off can save time.
While the wiper blade is removed, take care not to knock the wiper arm from its locked position, or it could strike the glass.
Offer the new blade into position the same way round as the old one. Ensure that it clicks home securely, otherwise it may come off in use, damaging the glass.
If smearing is still a problem despite fitting new wiper blades, try cleaning the glass with neat screenwash additive or methylated spirit.
Check the condition of the wiper blades; if they are cracked or show any signs of deterioration, or if the glass swept area is smeared, renew them. Wiper blades should be renewed annually.
To remove a windscreen wiper blade, pull the arm fully away from the windscreen until it locks. Swivel the blade through 90º, then depress the locking tab (arrowed) and push the blade down the arm.
Detach the blade from the end fitting on the arm. When fitting the new blade, make sure that the blade locks securely into the arm, and that the blade is orientated correctly.
Don’t forget to check the rear wiper blade(s) as well (where applicable) which are removed in the sameway.
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