Last post on Oct 03, 2013 at 1:25 PM
You are in the Volkswagen Passat
What is this discussion about?
Volkswagen Passat, Sedan, Wagon
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#2557 of 3341 Re: how to adjust timing belt? [sclaark]
Feb 17, 2008 (8:27 am)
1. Never, EVER use a Haynes manual as a reference guide for a VW. I highly recommend purchasing the Bentley manual (the VW bible).
2. The Haynes manual that you have probably has information for your Passat up to early 2001. Your car is more than likely the 2001.5 - which had a lot of design changes to the engine - including the hydraulic tensioner that you have (the one with the rod protruding from the lower left). This tensioner adjusts the timing belt tension automatically without the need for human intervention (except to replace the tensioner itself).
3. If your car is indeed a 2000 through 2005, the water pump is integrated into the engine block. If you see a cogged gear that the timing belt drives - that is your waterpump. I would HIGHLY recommend changing the water pump at this time due to the fact that the factory water pumps have plastic impellers that have been known to disintegrate around the 60,000 - 70,000 mile mark. The water pump should be replaced with the improved aftermarket GRAF water pump with the metal impeller.
If you do not have any of these items, I would STOP what you're doing, and order a complete timing belt service kit from germanautoparts.com.
Here's the complete link specifically for your model passat
Trust me, this will save you a lot of headache$$$$$$$ in the long run.
#2558 of 3341 Re: Similar to "Engine Troubles" [kenm33]
Feb 17, 2008 (9:36 am)
Yeah, it may be five years later but I had the same problem! Maybe someone will read this in the future.
My condition was temperature related and similar to yours. If I really gave it the gas, the exhaust sensor light would flash to indicate potential problems with the catalytic converter. This all happened after I hit a deer and had quite a few repairs to the front left side of the car.
The problem was diagnosed by Northland VW in Cincinnati. It was a broken spark plug wire. He found it by spritzing water into the engine as it ran, then saw sparks. It was very tough to find because I could not produce the problem for any dealers. They replaced all the spark plug wires.... then ended up replacing them again 4000 miles later for a regular maintenance!
#2559 of 3341 Re: how to adjust timing belt? [600kgolfgt]
Feb 17, 2008 (10:45 am)
thanks for the reply. I do have a new water pump to put in, although it too has the plastic impeller. As for the tensioner, I've taken it off the car and put it in a c- clamp to compress it back down...there are holes in the rod and the casing to allow a thin pin to be inserted to hold it in place.
Question: do you think this tensioner needs to be replaced? When I compressed it in the c-clamp, a small amount of hydraulic fluid came out.
#2560 of 3341 Re: how to adjust timing belt? [sclaark]
Feb 17, 2008 (5:00 pm)
Here's a rule of thumb when replacing the timing belt - replace everything (timing belt, tensioner, serpentine belt, water pump, thermostat, etc.). Since a timing belt job requires hours of labor ($$$), you might as well give yourself a piece of mind by installing new parts.
In other words, if you just replace some of the parts, and one of those components fail, you're looking at a $5000+ engine replacement job.
So play it safe - and replace everything. And do not install that plastic water pump - get the metal one. Based on my personal experience (I have two 2003 1.8Ts - one Passat and one Jetta), and the experiences of many VW mechanics that I've worked with over the years - the plastic waterpump has a life expectancy of 60,000 - 65,000 miles before its starts to disintegrate.
The metal water pump will extend your timing belt change intervals to the 90,000-100,000 miles (close to the factory recommended 105,000 miles). With the metal water pump, I make it a point to change the belts (and associated components) every 90,000 miles (to be on the safe side).
That being said - everything I have just stated assumes that the car has regular oil changes not exceeding 5,000 mile intervals with a VW 502.00 specification motor oil (at the VERY MINIMUM) or a VW 503.01 specification motor oil (HIGHLY RECOMMENDED). The majority of timing belt failures are due to factors other than the timing belt itself:
1) Sludge - leading to a seized engine which causes the timing belt to break
2) Failed timing belt related components:
- Plastic water pump disintegrates - plastic pieces jam the water pump
while the timing belt is moving - causing the belt to break
- Timing belt tensioner failure - causing the timing belt to break
- Running an engine with the same timing belt past the recommended
change interval (i.e. well past 105,000 miles) - leading to timing belt
failure due to excessive wear.
Here's a list of motor oils I recommend (using the newer VW 503.01 specification - HINT: every oil in this specification is synthetic):
Mobil 1 0W-40 (Available at most major auto stores)
Castrol Syntec 0W-30 (Available at Auto Zone, and selected auto stores)
Oil Filter - Use the factory MANN oil filter specifically for the Passat 1.8T ONLY!!!! Most of the aftermarket oil filters (Fram, etc.) are of inferior construction (rubber bypass valves, rubber anti-drainback valves, etc.).
The VW factory oil filters are not only robustly constructed, they incorporate an internal steel ball-bearing bypass valve and steel ball-bearing anti-drainback valve which aids in regulating the oil pressure while the engine is running, and prevents dirty oil from flowing back into the engine after the engine is turned off.
Good luck, and let us know how your timing belt job worked out.
#2561 of 3341 Re: how to adjust timing belt? [600kgolfgt]
Feb 17, 2008 (5:28 pm)
all good advice. thanks. I'm running into another problem....I don't seem to be able to get the new timing belt over the sprockets. The tensioner has the pin in place, the timing belt matches the old one, but it just doesn't seem long enough to pull over the sprockets. I expected a tight fit, but this is ridiculous. I must be doing something wrong. any ideas?
#2562 of 3341 Re: how to adjust timing belt? [sclaark]
Feb 18, 2008 (5:47 pm)
I finally got the timing belt on....after about 5 hours of tugging, stretching, cursing and inserting several breaks to restore my sanity, I got it on by getting it on the crank, water pump and tensioner pulley and about halfway on the camshaft. Then I put a wrench to the camshaft and turned it, pulling the belt onto the cam in the same manner I used to put bicycle chains back on...
I must confess that I decided to take my chances with the old tensioner and the plastic water pump, in no small part due to the fact that parts were not available for several days and I need this car on the road. I will be sure to do this again in 60,000 miles and order the German Auto Parts kit and do it right. I can't tell you how disappointed I was that I didn't know about this product before I started. I also changed the plugs and oil, and the car runs fantastic. BTW, my experience is that those platinum plugs are worth changing at 50,000 miles, not 100,000.
#2563 of 3341 Re: how to adjust timing belt? [sclaark]
Feb 19, 2008 (4:45 pm)
I must confess that I decided to take my chances with the old tensioner and the plastic water pump,
If your car is at or above 60,000 miles, you're rolling the dice by re-using the old tensioner. But the bigger risk is re-using the old water pump. Case in point: When the timing belt/water pump was changed on my 2003 Wolfsburg Jetta 1.8T (73,000 miles) and 2003 Passat GLS 1.8T (65,000) miles, the water pumps on both cars disintegrated when they were removed (not worn, but DISINTEGRATED). This is based not only on my experience, but the experience of several VW mechanics that I've worked with over the years.
I realize you need to get your car back on the road, but you have to ask yourself - is it worth risking a potential $5000+ (for the engine alone without the labor) engine replacement? Keep in mind, the 1.8T is an Audi-sourced engine, not a VW engine - which means $$$$$$$$$$$$$$$$$$$$$$$$....
#2564 of 3341 VW owns Audi
Feb 21, 2008 (6:55 am)
and 1.8T was widely used by many different VW vehicles (Skoda, Audi, Seat and VW brands).
#2565 of 3341 considering buying this 02 passat GLX wagon
Feb 22, 2008 (3:44 pm)
hey guys, im new to this site, and am looking and reviewing all the details about passats. im looking into buying a 2002 Volkswagen Passat GLX Wagon that i found on sale. hes asking $8,750, but im hoping to get it for $8,000. here are some details about it:
60,000 miles. Beautful Car, Owner sale, Fully loaded, one owner and very low mileage , V6 engine. Recently fitted with new tires, brakes and battery. All scheduled maintenance completed. Purchased new car and must sell.
he also told me he had an oil leak but just recently got that fixed.
so, what im asking is, if it all checks out, does this seem to be a good deal. anything you would suggest me asking him? he said i can take it to a mechanic, which i will, but you guys have any tips for me
#2566 of 3341 Re: considering buying this 02 passat GLX wagon [videokris]
Feb 23, 2008 (8:31 am)
The first thing I would investigate is whether the timing belt service has been performed. At 60,000 miles, the main concern usually isn't the timing belt itself, but the water pump (with a plastic impeller) that has been known to disintegrate at the 60,000 - 70,000 mile interval.
If that isn't the case, the seller should knock at least $750 - $1000 off the price (which is what will likely cost to have the timing belt service performed - which includes the timing belt, serpentine belt, tensioners, water pump, thermostat).
If these terms are met and you wind up purchasing the car, I would then do the following:
1) Purchase the timing belt service kit from germanautoparts.com. It includes everything you will need - including the improved aftermarket water pump with a metal impeller. Do this and you will extend your timing belt service interval from 60,000 to 100,000 miles (as recommended by the factory).
Here's the link for the timing belt service kit:
2). Find a reputable mechanic who specializes in VWs, and have them install the timing belt kit (that way you will only have to pay for labor). I would not take it to the dealer because not only are their labor charges much higher, they will insist on installing their factory parts (including the plastic water pump) - and you will pay accordingly $$$$$.
Also find out whether the following recall items have been addressed:
1) Brake light switch
2) Coolant temp sensor
In addition, check the condition of the brakes - especially the rear ones, as the rear brakes tend to wear more quickly than the fronts on Passats.