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The BMW Range
5 Series
E39
My 2003 M54 520i with 168,000 km
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<blockquote data-quote="seewai" data-source="post: 607626" data-attributes="member: 11307"><p>School holiday is approaching, this marks the time for a long-time pending project -> body paint!</p><p>I'm still 18/19 on colour choice. Personally I like 896 Bluewater, but my wife says Bluewater is still half-silver and so she prefers Silverstone Blue.</p><p></p><p>Anyway, during the upcoming school break, I also need to get a few new problems taken care of too.</p><p></p><p>1. car jerks uncontrollably in mornings first ignitions</p><p></p><p> - this happens when driving normally with clutch fully released, at 10-30kph speed, it would just jerk until I depress clutch to try "balancing" it. Symptom goes away after car has warmed up and will recur only the next morning / cold start.</p><p> - this could happen on 1st, 2nd or 3rd gear</p><p></p><p></p><p>2. car jerks when resuming speed </p><p></p><p> - this happens when cruising normally at a given speed, release gas pedal follow by gently / normally resuming or maintaining speed by depressing the gas pedal.</p><p> - this happens intermittently, could happen at 3rd, 4th or 5th gear.</p><p></p><p>3. quite whining sound heard from outside, when car cruises by herself at low speed</p><p> </p><p> - this happens when slowing down (eg via engine braking)</p><p> - very noticeable especially driving around my neighbourhood at quiet late nights, at a certain low speed, switch to 2nd or 3rd gear, release clutch, release gas pedal, let car cruises but herself, wind down window I can hear her "singing".</p><p></p><p>So far I've heard advices that all the above could be due to:</p><p></p><p>1. clutch - recently replaced</p><p>2. MAF dirty</p><p>3. O2 sensors</p><p>4. gas pedal (position sensor)</p><p>5. ??</p><p>6. ??</p><p></p><p>Well I hope to post solid answer(s) after school reopens <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Cheers.</p><p>seewai</p></blockquote><p></p>
[QUOTE="seewai, post: 607626, member: 11307"] School holiday is approaching, this marks the time for a long-time pending project -> body paint! I'm still 18/19 on colour choice. Personally I like 896 Bluewater, but my wife says Bluewater is still half-silver and so she prefers Silverstone Blue. Anyway, during the upcoming school break, I also need to get a few new problems taken care of too. 1. car jerks uncontrollably in mornings first ignitions - this happens when driving normally with clutch fully released, at 10-30kph speed, it would just jerk until I depress clutch to try "balancing" it. Symptom goes away after car has warmed up and will recur only the next morning / cold start. - this could happen on 1st, 2nd or 3rd gear 2. car jerks when resuming speed - this happens when cruising normally at a given speed, release gas pedal follow by gently / normally resuming or maintaining speed by depressing the gas pedal. - this happens intermittently, could happen at 3rd, 4th or 5th gear. 3. quite whining sound heard from outside, when car cruises by herself at low speed - this happens when slowing down (eg via engine braking) - very noticeable especially driving around my neighbourhood at quiet late nights, at a certain low speed, switch to 2nd or 3rd gear, release clutch, release gas pedal, let car cruises but herself, wind down window I can hear her "singing". So far I've heard advices that all the above could be due to: 1. clutch - recently replaced 2. MAF dirty 3. O2 sensors 4. gas pedal (position sensor) 5. ?? 6. ?? Well I hope to post solid answer(s) after school reopens :) Cheers. seewai [/QUOTE]
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My 2003 M54 520i with 168,000 km
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