Variable Valve Timing Actuator
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Senior Member
Joined: Jun 2005
Posts: 1,167
From: Pittsburgh PA
Variable Valve Timing Actuator
VW dealer did a courtsey check on my car, and said that the Variable Valve Timing Actuator needs replaced.
They want to charge $373.92 to change it.
I can't find any information on it? Does it go by another name, and what does it do??
2001 A4 1.8t 136,000 miles
They want to charge $373.92 to change it.
I can't find any information on it? Does it go by another name, and what does it do??
2001 A4 1.8t 136,000 miles
3rd Gear
Joined: Oct 2007
Posts: 2,158
From: CT
its an actuator that varies the valve timing. its basicly like a cam chain tensioner that is pressurized with oil and depending on how much oil gets pumped into it, it will tighten or loosen the chain allowing the cams to move a few degrees independent of each other, varying the valve timing a few degrees. vaguely similar to VTECH but not really.
3rd Gear
Joined: Oct 2007
Posts: 2,158
From: CT
Originally Posted by http://www.motortrend.com/cars/2001/audi/a4/index.html
2001 Audi A4 Performance & Efficiency Standard Features
2,771 cc 2.8 liters 6 V engine with 82.5 mm bore, 86.4 mm stroke, 10.3 compression ratio, double overhead cam, variable valve timing/camshaft and five valves per cylinder
2,771 cc 2.8 liters 6 V engine with 82.5 mm bore, 86.4 mm stroke, 10.3 compression ratio, double overhead cam, variable valve timing/camshaft and five valves per cylinder
theres no truth in that whatsoever.
Last edited by ghost6303; Feb 21, 2009 at 03:03 AM.
3rd Gear
Joined: May 2008
Posts: 1,900
From: CT
AWM (2001+) have vvt as ghost stated. It requires removing the valve cover. The most often cause for replacement is a leak from the seal, IIRC. It's been a while since I've done one. If you can replace a cam tensioner (which you should consider doing while in there), you can replace a vvt solenoid.
3rd Gear
Joined: Oct 2007
Posts: 2,158
From: CT
from the info i found it looked like VVT was only on the 2.8 of 2001. the later 05+ 1.8/2.0t's had VVT. i didnt think any B5 chasis 1.8's had it but i could be mistaken.
Variable cam timing cars have a cylindrical solenoid with a wire connection on the driver's side of the cylinder head.
2nd Gear
Joined: Jun 2010
Posts: 624
ALL Audi V6 and V8's from 2000 on have true VVT...advances intake as rpms build. Even my 2000 VW Passat 2.8 has it. Don't know about 1.8T's, though...never had one.
