# 99 bmw 528i

**URL:** <https://community.cartalk.com/t/99-bmw-528i/35258>\
**Category:** Maintenance/Repairs\
**Tags:** bmw\
**Created:** [August 19, 2009, 1:46am UTC](https://community.cartalk.com/t/99-bmw-528i/35258 "2009-08-19T01:46:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jskeezer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/jskeezer/32/1397_2.png) [@jskeezer](https://community.cartalk.com/u/jskeezer)\
**Post date:** [August 19, 2009, 1:46am UTC](https://community.cartalk.com/t/99-bmw-528i/35258/1 "2009-08-19T01:46:02Z")

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i have a 99 bmw 528i im working on. the code is p0340. i have replaced both cam sensors, found the maf sensor broken and replaced that to. the car will run great one minute and then has no power the next.

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**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\
**Post date:** [August 19, 2009, 2:25am UTC](https://community.cartalk.com/t/99-bmw-528i/35258/2 "2009-08-19T02:25:44Z")

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Fixing this one (or one very similar) burned me bad (not literally) back in 2001. Most likely cause is a defective Motor Driven throttle Valve BMW S.I 12 07 99.

I am responding based upon your sympton description and not the generic P0340 (Camshaft Position Sensor Malfunction). I believe the P0340 is secondary to the MDK failure. Confirmation can be had by scanning with a BMW scanner and looking for specific BMW codes.

But by sympton and pratical experience I think its the MDK. The S.I. for BMW is pretty much BMW jibberish but it does list the replacement part number 13 54 1 433 414. warranty labor time was a little over a hour. They are not fun but not the worst to replace. affected a large group of cars.