The Audi A4 TDI is a well-liked compact government automobile from the German producer, Audi. Since Audi is a subsidiary of Volkswagen, Audi and Volkswagen engine know-how is commonly comparable. The TDI represents the Turbocharged Direct Injection engine, a diesel engine with upgraded energy that makes use of direct injector know-how initially designed by Volkswagen. TDI expertise permits for better engine effectivity and better outputs in energy. Audi A4 TDI engines use a rubber belt with enamel to drive the camshaft. The timing belt ought to get replaced earlier than its precise failure to save cash, usually each 60,000 miles.
Audi A4 TDI Timing Belt Replace Procedures
Find the band clamps. These ought to be on the oil filtration system of the engine. Loosen the band clamps utilizing the flat band clamp pliers to remove the consumption tube of the consumption manifold.
Unplug the connector of the coolant tank. The coolant tank is the plastic container with water that cools the engine. Undo the clamp on the overflow tube utilizing a pair of standard pliers and pull off the overflow tube. Push the overflow tube to below the firewall to safe it and insert a cap to the open finish of the coolant tank.
Take away the screws holding the coolant tank utilizing a Philips head screw driver. Take away the allen bolt on the ability steering utilizing the 5 mm 3/8 inch drive allen socket and extension then unplug the gasoline strains from the filter. Elevate the facility steering reservoir and gently remove the coolant tank. Enable the coolant tank to hold from the aspect of the automotive.
Take away the higher cowl of the timing belt. Take away the rear and front allen bolts of the valve cowl utilizing the 5mm 3/8 inch drive allen socket and extension. Don’t remove the 2 allen bolts which might be subsequent to the oil filler cap. Elevate and remove the valve cowl. Find the primary two lobes on the camshaft and switch them to the up place.
Find and remove the vacuum line (this must be working below the vacuum pump). Take away the lower and higher 10mm nuts utilizing a ¼ inch drive deep socket. Utilizing the 10mmm forty five diploma offset wrench remove the help brackets of the vacuum line. Take away the front, rear and lower bolts of the vacuum pump utilizing the 13mm deep socket. Take away and bend the vacuum pump out of the way in which.
Elevate the automotive utilizing the jack stands and the hydraulic carry. Crawl underneath the automotive from the passenger aspect and find the turbo compressor outlet pipe. This needs to be in the back of the engine. Take away the spring on the turbo compressor utilizing the flat clamp pliers and pull off the hose. Take away the nut on the turbo compressor utilizing a 10mm socket. Take away the entire duct assembly by eradicating the clamp on the intercooler utilizing the flat clamp pliers.
Take away the washer nuts of the engine facet panel utilizing a protracted screwdriver and remove the panel. Relieve the strain on the belt tensioner utilizing the 41831 serpentine belt tensioner device and remove the belt.
From the higher facet of the automobile, rotate the engine clockwise utilizing the 30036 camshaft holding bar to a ‘lobes up’ place. The groove within the cam pulley shall be aligned to the valve within the cowl deck.
Insert the 3418 camshaft setting bar into the groove on the finish of the camshaft. Find the timing mark on the flywheel (a circled A with minus indicators on both aspect).
Take away the engine mount alignment plate utilizing a 13mm deep socket with extension. The lower bolts will be eliminated utilizing a sixteen mm and ½ inch drive socket.
Carry the engine in order that it’s an inch off the automotive body by inserting a block of wooden on the jack on the passenger aspect of the automobile. Take away the remaining engine mount bolts utilizing the ½ inch 18mm socket and remove the engine mount.
Elevate the engine on the jack additional to show the mount bracket gap. Use a 3/8 inch deep socket to remove the middle and front bolts. Decrease the engine and remove the 4 allen bolts of the harmonic balancer utilizing the 3/8 inch deep drive rachet. Take away the harmonic balancer.
Loosen the bolts on the lower engine mount utilizing the 3/8 inch deep drive rachet and sixteen mm socket. Take away the timing belt cowl plate bolts utilizing a ¼ deep drive rachet and 10mm socket. Then remove the loosened bolts of the lower engine mount. Take away the quilt plate of the timing belt.
Take away the nut on the tensioner. Place a 2587 two pin spanner wrench on the tensioner and rotate anti-clockwise. Loosen the bolts on the camshaft pulley utilizing a 19mm 1/3 inch drive socket. Set up the T40001 puller set within the camshaft pulley snaps and remove the camshaft pulley bolt. Take away the camshaft pulley.
Take away the outdated tensioner. Slide the outdated timing belt between the engine mount and blocks to remove the belt. Slide the brand new belt between the engine mount and blocks and across the pulleys. Set up the brand new tensioner and reassemble the engine. Double examine to see if the flywheel is at TDC (the timing mark needs to be simply seen).
