Crankshaft Position Sensor
Re: Crankshaft Position Sensor
My turn with the NA. CEL came on at start up when I left work on Friday. Engine was stone cold and started right away. Stopped twice on the way home and the CEL went off. Scanned when I got home and PO335 was stored. Cleared the code and today I replaced CPS with Bosch CPS I picked up a few years back when they were $35. I have 1 spare left but with 2 cars, I just ordered another spare.
http://www.ebay.com/itm/Mercedes-Benz-Crankshaft-Position-Sensor-BOSCH-0261210170-0031532728-/390639067171?pt=Motors_Car_Truck_Parts_Accessories&hash=item5af3e72023&vxp=mtr
http://www.ebay.com/itm/Mercedes-Benz-Crankshaft-Position-Sensor-BOSCH-0261210170-0031532728-/390639067171?pt=Motors_Car_Truck_Parts_Accessories&hash=item5af3e72023&vxp=mtr
Re: Crankshaft Position Sensor
First of all, thanks guys!!!!!!! I was stopped dead in the middle of traffic.
Autozone carries the part.
Part Number: SU4740
Crankshaft Position Sensor | 2004 Mercedes Benz SLK320 6 Cylinders 3.2L SFI SOHC | AutoZone.com
There is a bracket, held on by 2 larger star bolts, blocking the CPS . I loosened the large star bolt closest to the CPS so the bracket would wiggle out of the way.
(got the female star set at Lowe's for $39.99) (use the one marked "E16")
Then I used a small 1/4" deep socket, with an extension, to get the smaller star socket out of it's hole. The CPS pulls right out, easily.
I did not want to use that small star socket bolt again, it sucks.
So I got a different bolt from Lowe's with the same threads and length.
( stainless steel M6 - 1.00 x 16 )
Autozone carries the part.
Part Number: SU4740
Crankshaft Position Sensor | 2004 Mercedes Benz SLK320 6 Cylinders 3.2L SFI SOHC | AutoZone.com
There is a bracket, held on by 2 larger star bolts, blocking the CPS . I loosened the large star bolt closest to the CPS so the bracket would wiggle out of the way.
(got the female star set at Lowe's for $39.99) (use the one marked "E16")
Then I used a small 1/4" deep socket, with an extension, to get the smaller star socket out of it's hole. The CPS pulls right out, easily.
I did not want to use that small star socket bolt again, it sucks.
So I got a different bolt from Lowe's with the same threads and length.
( stainless steel M6 - 1.00 x 16 )
Re: Crankshaft Position Sensor
I would not use this bolt at all, but it's not my car. We can be assured that the current bolt is OK.
Re: Crankshaft Position Sensor
SLK manuals, see if this link works.
https://www.dropbox.com/sh/gw3cyp3rdpztdue/c2GqOGQn8C
https://www.dropbox.com/sh/gw3cyp3rdpztdue/c2GqOGQn8C
Re: Crankshaft Position Sensor
Looks so easy, 35 min of re positioning the ratchet, the E8 and the extension.
Best thing to do is us a small E8 and a solid extension. Get the e8 and extension in place, then connect a small ratchet. Screw will come out with sensor once its loose.
Advanced Auto Part CPS for $47.50 works just fine! Life time warranty!
Best thing to do is us a small E8 and a solid extension. Get the e8 and extension in place, then connect a small ratchet. Screw will come out with sensor once its loose.
Advanced Auto Part CPS for $47.50 works just fine! Life time warranty!
Re: Crankshaft Position Sensor
Looks so easy, 35 min of re positioning the ratchet, the E8 and the extension.
Best thing to do is us a small E8 and a solid extension. Get the e8 and extension in place, then connect a small ratchet. Screw will come out with sensor once its loose.
Advanced Auto Part CPS for $47.50 works just fine! Life time warranty!
Best thing to do is us a small E8 and a solid extension. Get the e8 and extension in place, then connect a small ratchet. Screw will come out with sensor once its loose.
Advanced Auto Part CPS for $47.50 works just fine! Life time warranty!
Re: Crankshaft Position Sensor
Wait. Cps is failing. Jiggled the wire and car starts but cuts off at higher rpm. I thought about something I read..... Pins are thinner on the advanced part. I m wondering if the pins aren't making good contact to the harness or if there is in fact a short in the connector.
Re: Crankshaft Position Sensor
Have to agree.. mines still riding right behind my seat in case the Advanced Auto ever does fail. What's it been 2 years now 180? Just realized.. it's got about 60k on it and never been plugged in.. LOL
Re: Crankshaft Position Sensor
so, i have seen guys that did ok with the advanced part and there is a lifetime warranty. That being said the Advanced part has thinner pins. I gobbed some di-electirc grease on the sensor pins and bent them downward so they would create more friction when i plugged it in and BAM. Car starts, runs strong at high rpms, and when I jiggle the wire, nothing happens. Im wondering if there is a way to fatten up the pins up to aid in the connection.
Im also wondering if people are replacing their connector thinking that a wire is loose there when really there is too much space and a poor connection on the advanced part.
Im also wondering if people are replacing their connector thinking that a wire is loose there when really there is too much space and a poor connection on the advanced part.
Re: Crankshaft Position Sensor
so, I bent the prongs on the advanced part and used some di-electric grease to improve contact on the sensor. That did the trick. The sensor is working fine now, the wire is not damaged or the connector. The connector has been stretched by the bosch part and is not making good, consistant contact with the advanced part. Now that I tilted the prongs, sensor works AOK.
Re: Crankshaft Position Sensor
Ok, read this long and high quality thread. My 2005 Xfire recently developed the "engine stopped running " problem. 1st time sitting on idle at lights and took about 12 cracks before it started. It was a day off so I took it straight to my auto shop and they have an ex Merc dealer shop guy there who said it was probably the CPS. He phoned back a day later and said they found the P0335 fault code and changed the sensor...cost of job $299. I picked it up drove about a mile away and the engine powered down on acceleration away from some lights! It started again after about 6 or 7 cranks and I drove straight back to the shop. Next day they called to say the P0335 fault code was still there and that the sensor was probably defective...no charge of course. They replaced with a new one, I picked it up and drove it home with no problem. After one day I drove the car out and the engine just died again, same symptoms!!!!! It started this time after about 20 cranks.
So I am taking it back again Monday (shop is 3 miles from me). Is it feasible the CPS replacement they installed (Mopar part he said) could have failed as well? Or are they just missing correct fault. I see some reference to Camshaft sensor have the same symptoms (but a different fault code). I also saw some comment about wiring connections. Anybody had the repeat problem like mine? Any "advice" for my shop. They havent failed me yet in 6 years of servicing my two cars.
So I am taking it back again Monday (shop is 3 miles from me). Is it feasible the CPS replacement they installed (Mopar part he said) could have failed as well? Or are they just missing correct fault. I see some reference to Camshaft sensor have the same symptoms (but a different fault code). I also saw some comment about wiring connections. Anybody had the repeat problem like mine? Any "advice" for my shop. They havent failed me yet in 6 years of servicing my two cars.