BMW Air mass meter (AKA: air flow meter or MAF) issues and cheapalternatives
My E39 530d (2001) started to behave sluggish tendancies
symptons: very slow response to acceleration power reasonable at 1/2 throttle, dire at full throttle significant loss of power above 3750 rpm better performance when engine cold. I disconnected the MAF - the symptoms improved. Diagnosis: the MAF had died. I sought an OEM replacement for my Bosch 0928 400 468 airflow meter. Result: part number has changed to 0928 400 527 and cheapest was £175 + VAT Looked at far Eastern alternatives on eBay - got scared off by mixed experiences (see my previous post) I decided to buy a Pierburg alternative which is just the insert (no housing) Once I had sourced a security Torx bit, the replacement was a doddle (2 screws) and required very basic DIY skills. Result - it is now A1 again and the cost was £61 delivered with VAT. I'm sure they make the alternatives for other models too - my recommendation is they are well worth a try and they are reassuringly made in Germany. I hope this saves someone else time and money. David |
BMW Air mass meter (AKA: air flow meter or MAF) issues and cheapalternatives
Try soaking the MAF in an alcohol solution. I experienced the same, and put the MAF in a Rubbing Alcohol solution for 30 minutes. ($1.99 for a liter bottle) and all was better... This was over a year ago. I experienced very erratic RPM aswell. The engine took a very, long time to come down in RPM. On Thu, 13 Sep 2007, DCA wrote: > My E39 530d (2001) started to behave sluggish tendancies > symptons: > very slow response to acceleration > power reasonable at 1/2 throttle, dire at full throttle > significant loss of power above 3750 rpm > better performance when engine cold. > > I disconnected the MAF - the symptoms improved. Diagnosis: the MAF had died. > > I sought an OEM replacement for my Bosch 0928 400 468 airflow meter. > Result: part number has changed to 0928 400 527 and cheapest was £175 + VAT > > Looked at far Eastern alternatives on eBay - got scared off by mixed > experiences (see my previous post) > > I decided to buy a Pierburg alternative which is just the insert (no housing) > > Once I had sourced a security Torx bit, the replacement was a doddle (2 > screws) and required very basic DIY skills. > > Result - it is now A1 again and the cost was £61 delivered with VAT. > > I'm sure they make the alternatives for other models too - my recommendation > is they are well worth a try and they are reassuringly made in Germany. > > I hope this saves someone else time and money. > > David > -- Joseph - Join the Auto Repair Wiki http://www.FixExpert.com |
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