Front end specialists, PLEASE help? clunk/thump in front end '04 Audi A4 1.8
#1
08-19-2015, 05:55 PM
Front end specialists, PLEASE help? clunk/thump in front end '04 Audi A4 1.8
Some background on car - it's a 2004 Audi A4 1.8t Quattro, 120k miles (front brakes and tires are in good condition-- no CEL lights)
Last weekend during a long drive I noticed a weird thump/clunk in the front end when turning into a parking space. When I first noticed it, it felt as if I ran over two perfectly placed rocks, or two potholes. I was confused at first. But then continued driving on our trip (since we were already 200 miles away). After the car stopped and cooled overnight, the thump/knock briefly went away. But after driving 10+ miles, it started again during slow turns left/right of speeds between 1-10 mph. Driving straight: no issue; turning at 15+ mph: no issues; driving in reverse at any speed: no issues. It only makes a light version of the clunk/thump when doing driving uphill at rpms 2500-3000ish, as soon as I go 3000+ rpms, the uphill clunk/thump goes away.
At first I thought it was a CV Joint, as a mechanic suggested. So we looked at the passenger one as the culprit (it was really hot compared to the other one) and replaced it. The problem didn’t go away. When the mechanic lifted the car, he didn’t see anything stand out, either.
I decided to drive the car at slow speeds (1-3mph), while my dad looked near the tires, to see if we can notice any pops in the joints, and he noticed the clunk/pop, but on both ends. Then we put up the hood and noticed when we examined it at turns 1-5mph, at a rhythmic revolution of the tires we can see the engine rock.
I can’t figure out what it is. This doesn’t happen any other time besides the slow turns and up inclines. It can’t be the transmission, is it? The mechanic suggested it may be the transmission differential? Any thoughts? Suggestions? We replaced the passengers CV joint, but then when the mechanic saw how much it clunks/rocks the engine, he said it can’t be the CV joint.
Definitely need a suggestion. At odds since I can’t drop hundreds of dollars or close to a thousand into something that is barely worth 4.5k. If it’s the transmission, I can’t fix it so rather sell it to someone that can..
Last weekend during a long drive I noticed a weird thump/clunk in the front end when turning into a parking space. When I first noticed it, it felt as if I ran over two perfectly placed rocks, or two potholes. I was confused at first. But then continued driving on our trip (since we were already 200 miles away). After the car stopped and cooled overnight, the thump/knock briefly went away. But after driving 10+ miles, it started again during slow turns left/right of speeds between 1-10 mph. Driving straight: no issue; turning at 15+ mph: no issues; driving in reverse at any speed: no issues. It only makes a light version of the clunk/thump when doing driving uphill at rpms 2500-3000ish, as soon as I go 3000+ rpms, the uphill clunk/thump goes away.
At first I thought it was a CV Joint, as a mechanic suggested. So we looked at the passenger one as the culprit (it was really hot compared to the other one) and replaced it. The problem didn’t go away. When the mechanic lifted the car, he didn’t see anything stand out, either.
I decided to drive the car at slow speeds (1-3mph), while my dad looked near the tires, to see if we can notice any pops in the joints, and he noticed the clunk/pop, but on both ends. Then we put up the hood and noticed when we examined it at turns 1-5mph, at a rhythmic revolution of the tires we can see the engine rock.
I can’t figure out what it is. This doesn’t happen any other time besides the slow turns and up inclines. It can’t be the transmission, is it? The mechanic suggested it may be the transmission differential? Any thoughts? Suggestions? We replaced the passengers CV joint, but then when the mechanic saw how much it clunks/rocks the engine, he said it can’t be the CV joint.
Definitely need a suggestion. At odds since I can’t drop hundreds of dollars or close to a thousand into something that is barely worth 4.5k. If it’s the transmission, I can’t fix it so rather sell it to someone that can..
Last edited by michaeldemi; 08-19-2015 at 06:01 PM.
#2
08-20-2015, 11:43 AM
Control arm bushings...? Tie rod ends...? The motor jumping could be motors mounts or a nose mounts which may or may not be releated I couldn't say for sure without seeing the car myself. Also not every mechanic knows what to look for and how to look for it
#3
08-22-2015, 07:28 PM
Thanks for the response - at least it's good to know that it's not the transmission. Every forum has made it quite clear that it's either upper arm, an arm bushing, or a mount - or a combination
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03-15-2020, 04:59 PM
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