1998 528i bmw the car crank but no start, i put the dianostic computer and it say that the EWS is manipulate... what this mean and what to do

lost all our keys,? what is the key story, there sure is one.
no year car told, wow.
E32 model 1986?or (no)
Sixth generation (G11/G12; 2015)???? IMMO does not allow, you to lose all keys, then buy one and start the car, in fact that it is A#1 PURPOSE. to prevent that.

1st google hit, read

https://www.bmwcodingdatabase.com/interesting-about-bmw/readers-ask-lost-bmw-keys-what-to-do.html

Hi David. There are usually 3 possible scenerios. I recommend trying another key if you have one. A diagnostic may be required to make sure the key is valid, the EWS and DME are aligned, and if the EWS is recieving a valid signal. The key and EWS are the two most common failures. If you replace the EWS, it must be coded and aligned to the vehicle. Greg

ews manipulated check key for dme alignment

Fault code: 2F44 EWS preventing manipulation.
This is a common fault code flagged by BMW vehicles when the EWS (also known as the CAS module or immobilizer) no longer communicates with the DME.
Some of the most common causes, for this condition, is battery failure or ignition key failure.
Many times, a customer will bring a BMW into the shop or have it towed into the shop, and explain that "the car just won't start, suddenly". Upon further investigation, it is common for a technician to find poor battery condition or a failed ignition key.
In the case of poor (low) battery condition. A low voltage level has caused the immobilizer (CAS/ EWS) to lose its alignment with the DME.
In the case of a failed key, the immobilizer (CAS/EWS) cannot "see" the key in the ignition and therefore will not allow the vehicle to start. This is the "no crank" part of this fault.
So where do we start?
Using a factory level scanner, connect to the vehicle. After identifying the vehicle, proceed to the immobilizer module (CAS/EWS) and investigate if the key can be identified. If the key in the ignition slot cannot be identified and the key slot/ receiver is functioning correctly, then the key must be replaced. Typically, at this point, the first thing we want to do is ask the customer if another valid key is available. If so, let's try this first! If not available, a NEW key FROM THE DEALER, must be purchased.
NOTE: Aftermarket keys will not work i.e. E bay etc. The keys for these cars are VIN specific and need to be supplied by the dealer only!
A new key will work "right out of the box" from a dealer. Simply put it in the ignition, allow the vehicle to identify it (give it about ten seconds) and try a startup.
After replacing the key and regaining key identification the immobilizer (CAS/EWS) must be aligned with the DME.
Using a factory level scanner, perform the DME to CAS/EWS immobilizer alignment procedure. Clear fault code(s).
So, what about the battery?
All the above information is based on having strong battery voltage. In regards to BMW vehicles, 11.0 volts is NOT good voltage. These vehicles are designed to operate in the 12.4 to 13.0 (average) voltage area.
Before attempting to start the engine, a technician should perform a battery load test. When working with BMW vehicles, if the battery is marginal or too old (more than three years old) replace it.
NOTE: New batteries for later model BMWs (CIP vehicles from approx. 2004) will need to be registered. With a dealer level scanner, a tech can perform this function.
Note: As time passes BMW will change the way immobilizers are aligned. Typically, this happens when BMW changes manufacturers. If performing a standard CAS /DME alignment does not work, A later procedure is available. With late model (EWS 3 type onward) immobilizers, the tech must perform a three-step procedure. Using a dealer level scanner, carry out 1) CAS reset, 2)steering lock counter reset 3) reset the starter interlock.

Hi Mushi, Your BMW is fitted with an anti theft system (EWS) which controls the common rail injection. I suggest having a diagnostic scan carried out and pin pointing any possible problem, which could also be related to a defective crank or cam shaft sensor. Regards John

You didn't say what year, but maybe this video will help you:

Or this one:

Well if the car is actually cranking but just not firing up usually the dme and the ews needs to be "mated" or "synced" together again. The ews is the immobilizer and it has "rolling codes" that have to matched when starting with the last code that is in the dme memory of when the car was last started. Take it to BMW and have them to sync them. Car will start right up.

PS...also check your CRANKshaft sensor as well. It provides a pulse to the ignition coils to fire also.

Your cars Alarm/disabler is on. It's an anti theft device built into CPU. You need BMW or a competent specialty shop to look at it.

signal,EWS manipulated

there is a rolling code that goes between the key and ews module. Aligning the ews and the key sometimes fixes the problem. (performed with bmw diagnostic equipment)Usually keys will fail over time due to the fact of how they are treated. If you have battery voltage at the largest post on the starter. I would check to see if while holding the key in the start position if there is voltage at the second largest post on the starter. this is the starter enable wire. if you see voltage on that wire then the ews system is working properly and the starter needs replacement. i would also try using a spare key, if you have one, to see if that fixes the problem