Bosch

0221504470

Bosch 0221504470 Ignition Coil for Select BMW Cars - 6-Pieces

EAN: 4047024492356

Coils

Please note there is a production split at 04/2006. Send us the VIN to confirm fitment before purchase.
You can also check fitment at this page by clicking on Change Vehicle, then selecting the Ignition Parts section once the vehicle information has been entered : https://www.boschautoparts.com/en/

In order to minimize unnecessary returns please check whether this ignition coil is compatible with your using amazon fitment tool or by going to manufacturer's website. For Select BMW Cars Please Check Compatibility Using Amazon Fitment ToolShould my BMW ignition coil snap?If you've tried to install one of the newly-redesigned Bosch coils for BMWs, part numbers 0 221 504 464/00124 and 0 221 504 470/00044, you may have wondered why the part did not "snap" into place.With the newly-designed coil, the customary "snap" previously heard with the old design - giving an indication that the coil had been properly installed - is no longer present. The absence of that sound has raised some concern of a design fault that could cause the unit to fail prematurely causing engine misfire or other issues. Rest assured that this is not the case.Some technicians thought that the coil was held in place by a connection between the contact bolt of the spark plug and contact inside the coil, and that this "snap" must always be heard. In reality the ignition coil is held in 2 places: 1) by the rubber boot that slips over the ceramic part of the spark plug, and 2) by the sealing lips at the upper end of the coil.With the newly-designed coil, the customary "snap" is no longer heard nor is it an indication that the coil has been properly installed. This new design does, however, provide better coil performance at the spark plug connection point, which was the area that concerned some technicians. In other words, the original design actually gripped the spark plug tip and felt more secure; whereas the new design uses a contact spring on the spark plug tip and this design may not feel like the connector is gripping the spark plug - but in reality it does the job just as well or better than the old design.Aesthetically the change of the collar/housing around the coil body from a metallic to a plastic housing, and the spark plug connector are obvious improvements for the appearance of this coil body and provides improvements in fit, form and function as intended by BMW. Bosch and BMW have also used this newer connector design in hundreds of thousands of OE BMW coils in recent years with no performance problems or other issues.

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