IrvesBMW Posted January 9 Share Posted January 9 Greetings, I own a BMW 116i with an N43 engine and just performed an oil change around 200 miles ago; nonetheless, the low oil pressure warning light has illuminated on the dashboard. Initially, I suspected that I had incorrectly installed the oil filter; however, replacing it correctly did not resolve the oil pressure light issue. I am enquiring if the readings obtained from my OBD scanner are within the typical range. The timing chain was reportedly replaced 1,500 miles ago, and I am seeking your insights on the values I have seen. Quote Link to comment Share on other sites More sharing options...
dave783 Posted January 9 Share Posted January 9 The idle level is low. I would want around 1.7 bar; since it is an N43, I would replace the oil control valve and reassess. Quote Link to comment Share on other sites More sharing options...
IrvesBMW Posted January 9 Author Share Posted January 9 Thank you for your response. I have already purchased one; I just need the tool to release the tensioner on the alternator, since I lack access to the underneath of the vehicle. Is it safe to drive in the circumstances shown in the image? I do not encounter a rough idle; the driving is smooth, however the engine is rather louder than normal. What is your opinion? Quote Link to comment Share on other sites More sharing options...
dave783 Posted January 9 Share Posted January 9 I would not operate it with a low oil pressure problem. What tools are required? I believe a 16mm spanner is necessary to relieve tension, along with a 4 or 5mm drill bit to secure it in a de-tensioned state. Quote Link to comment Share on other sites More sharing options...
IrvesBMW Posted January 9 Author Share Posted January 9 Thank you. I will likely provide an update after completing the task tomorrow and will share some photographs after the work is finished. I have seen many videos indicating that these pressure control solenoids are rather sensitive, so I anticipate that removal will be straightforward. Quote Link to comment Share on other sites More sharing options...
IrvesBMW Posted January 9 Author Share Posted January 9 The replacement of the oil control valve did not resolve the problem. What are the subsequent steps? Quote Link to comment Share on other sites More sharing options...
dave783 Posted January 9 Share Posted January 9 Enquire if the sump was removed during the chain replacement and whether the oil pump pickup was inspected for debris. Quote Link to comment Share on other sites More sharing options...
IrvesBMW Posted January 9 Author Share Posted January 9 Regrettably, I lack the equipment and resources to verify such matters independently; thus, I must entrust it to a garage for inspection. I hope that is the problem, since my inspection of the oil control valve revealed no metal shavings or contaminants; it was, in fact, fairly clean. Quote Link to comment Share on other sites More sharing options...
Paqngo Posted January 9 Share Posted January 9 A appropriate oil pressure gauge has to be installed and the pressure assessed. That is a substandard repair. Quote Link to comment Share on other sites More sharing options...
BEERMAN Posted January 9 Share Posted January 9 If the error signal persists and the oil pickup is free of debris, the issue lies with the oil pressure sensor. Ensure it is an actual BMW part, since I had issues after installing a Disney Land brand component from eBay, which proved to be ineffective. Since replacing the sensor with the original, the error has vanished and has not reoccurred. However, prioritise the investigation of oil pickup first. Quote Link to comment Share on other sites More sharing options...
IrvesBMW Posted January 9 Author Share Posted January 9 The engine was overhauled several months ago; I doubt the mechanics would overlook cleaning the sump and the pick-up. However, it may simply be an issue with the oil pressure sensor. Currently, I am not overly concerned, as the engine does not exhibit significant noise and the oil pressure increases appropriately with the RPM. I will conduct further investigation for leaks and other potential causes. The indicator illuminated only after the oil change was performed. Quote Link to comment Share on other sites More sharing options...
BEERMAN Posted January 9 Share Posted January 9 Ensure that you have purchased either a MANN or authentic BMW filter, since some filters do not have two oil seal rings, which may trigger the low pressure warning light. If it is OK, I suspect the issue is with the oil pressure sensor. Quote Link to comment Share on other sites More sharing options...
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