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The BMW Range
5 Series
E39
Loud Thud When Engaging Reverse Gear
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<blockquote data-quote="moots" data-source="post: 718002" data-attributes="member: 219"><p>Your problem is intermittent.My guess is the noise got louder becoz of low gearbox fluid hence the gearbox tend to shift harshly thus exaggerating the knocking sound of the CSB.You can try replicating the sound by shifting to manual gear 2 and give the accelerator a quick jab and see if it thuds.The CSB sits under the rear air louver.</p><p>CSB and guibo cost total rm250 approx.workmanship maybe rm100.the exhaust pipes and heat shield needs removing to get to the CSB.</p></blockquote><p></p>
[QUOTE="moots, post: 718002, member: 219"] Your problem is intermittent.My guess is the noise got louder becoz of low gearbox fluid hence the gearbox tend to shift harshly thus exaggerating the knocking sound of the CSB.You can try replicating the sound by shifting to manual gear 2 and give the accelerator a quick jab and see if it thuds.The CSB sits under the rear air louver. CSB and guibo cost total rm250 approx.workmanship maybe rm100.the exhaust pipes and heat shield needs removing to get to the CSB. [/QUOTE]
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The BMW Range
5 Series
E39
Loud Thud When Engaging Reverse Gear
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